Pacific-North American (PNA)
The Pacific-North America (PNA) pattern is one of the most prominent modes of low-frequency variability in the Northern Hemisphere extratropics, appearing in all months except June and July. The PNA pattern reflects a quadripole pattern of 500 millibar height anomalies, with anomalies of similar sign located south of the Aleutian Islands and over the southeastern United States. Anomalies with sign opposite to the Aleutian center are located in the vicinity of Hawaii, and over the intermountain region of North America (central Canada) during the winter and fall.
The spatial scale of the PNA pattern is most expansive in winter. During this period, the Aleutian center spans most of the northern latitudes of the North Pacific. In spring, the Aleutian center contracts and becomes confined primarily to the Gulf of Alaska. However, the subtropical center near Hawaii reaches maximum amplitude during the spring. The PNA pattern then disappears during June and July, but reappears in the late summer and fall. During this period, the midlatitude centers become dominant and appear as a wave pattern emanating from the eastern North Pacific. The subtropical center near Hawaii is weakest during this period.
The PNA index is obtained by projecting the PNA loading pattern to the daily anomaly 500 millibar height field over 0-90°N. The PNA loading pattern has been chosen as the second mode of a Rotated EOF analysis using monthly mean 500 millibar height anomaly data from 1950 to 2000 over 0-90°N latitude. For more information, please see CPC's Pacific-North American Pattern website.
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| Date | PNA |
|---|---|
| 195001 | -2.34 |
| 195002 | -1.04 |
| 195003 | 0.24 |
| 195004 | 0.01 |
| 195005 | -0.55 |
| 195006 | -1.97 |
| 195007 | -0.43 |
| 195008 | 0.82 |
| 195009 | -1.15 |
| 195010 | 0.49 |
| 195011 | -1.81 |
| 195012 | 0.02 |
| 195101 | -0.41 |
| 195102 | -1.36 |
| 195103 | -0.81 |
| 195104 | 0.73 |
| 195105 | 1.26 |
| 195106 | -0.61 |
| 195107 | -0.02 |
| 195108 | 0.05 |
| 195109 | -0.05 |
| 195110 | 0.24 |
| 195111 | 0.23 |
| 195112 | -1.29 |
| 195201 | -1.98 |
| 195202 | 0.28 |
| 195203 | -0.40 |
| 195204 | 1.16 |
| 195205 | -0.99 |
| 195206 | 0.39 |
| 195207 | -1.23 |
| 195208 | 0.80 |
| 195209 | 0.53 |
| 195210 | 0.80 |
| 195211 | 0.82 |
| 195212 | 0.93 |
| 195301 | 0.65 |
| 195302 | 1.00 |
| 195303 | -0.15 |
| 195304 | 1.05 |
| 195305 | 1.20 |
| 195306 | -1.60 |
| 195307 | 0.74 |
| 195308 | -1.12 |
| 195309 | -0.12 |
| 195310 | 1.91 |
| 195311 | 1.65 |
| 195312 | 1.27 |
| 195401 | -1.14 |
| 195402 | -0.14 |
| 195403 | -1.17 |
| 195404 | -2.70 |
| 195405 | 0.64 |
| 195406 | -0.02 |
| 195407 | 0.30 |
| 195408 | -0.08 |
| 195409 | 0.00 |
| 195410 | 0.75 |
| 195411 | 1.45 |
| 195412 | -0.52 |
| 195501 | 0.40 |
| 195502 | -1.74 |
| 195503 | -2.23 |
| 195504 | 0.00 |
| 195505 | -0.57 |
| 195506 | 0.00 |
| 195507 | -0.96 |
| 195508 | -0.52 |
| 195509 | -0.21 |
| 195510 | 0.31 |
| 195511 | -0.96 |
| 195512 | -2.07 |
| 195601 | -1.32 |
| 195602 | -1.04 |
| 195603 | -0.69 |
| 195604 | 0.07 |
| 195605 | -0.29 |
| 195606 | -0.18 |
| 195607 | -0.92 |
| 195608 | -0.20 |
| 195609 | 0.55 |
| 195610 | -2.11 |
| 195611 | 1.06 |
| 195612 | -0.31 |
| 195701 | -1.19 |
| 195702 | -1.19 |
| 195703 | 1.10 |
| 195704 | -0.17 |
| 195705 | 1.31 |
| 195706 | 0.12 |
| 195707 | 0.33 |
| 195708 | -0.96 |
| 195709 | -0.22 |
| 195710 | 0.27 |
| 195711 | 0.52 |
| 195712 | -0.43 |
| 195801 | 0.99 |
| 195802 | 0.49 |
| 195803 | 0.49 |
| 195804 | 0.57 |
| 195805 | 0.65 |
| 195806 | 1.29 |
| 195807 | 1.24 |
| 195808 | 2.15 |
| 195809 | -0.01 |
| 195810 | 0.16 |
| 195811 | 0.09 |
| 195812 | 0.65 |
| 195901 | -0.69 |
| 195902 | -0.70 |
| 195903 | 0.52 |
| 195904 | -0.68 |
| 195905 | -0.44 |
| 195906 | 0.91 |
| 195907 | -0.03 |
| 195908 | 1.06 |
| 195909 | 1.48 |
| 195910 | 0.06 |
| 195911 | 0.28 |
| 195912 | 0.66 |
| 196001 | 0.38 |
| 196002 | 0.06 |
| 196003 | -0.40 |
| 196004 | 0.18 |
| 196005 | 1.03 |
| 196006 | 1.02 |
| 196007 | 1.64 |
| 196008 | 1.88 |
| 196009 | 0.04 |
| 196010 | 0.29 |
| 196011 | -0.53 |
| 196012 | 1.46 |
| 196101 | 1.41 |
| 196102 | 0.35 |
| 196103 | 0.59 |
| 196104 | -0.92 |
| 196105 | -0.38 |
| 196106 | 1.62 |
| 196107 | -0.11 |
| 196108 | 0.50 |
| 196109 | 1.37 |
| 196110 | -1.91 |
| 196111 | -0.41 |
| 196112 | -1.24 |
| 196201 | -0.07 |
| 196202 | -0.18 |
| 196203 | -0.43 |
| 196204 | -1.30 |
| 196205 | -1.36 |
| 196206 | -1.01 |
| 196207 | 0.06 |
| 196208 | 0.60 |
| 196209 | -0.95 |
| 196210 | 1.06 |
| 196211 | 0.57 |
| 196212 | -0.08 |
| 196301 | 0.58 |
| 196302 | 0.81 |
| 196303 | -1.79 |
| 196304 | -0.56 |
| 196305 | -1.17 |
| 196306 | 0.37 |
| 196307 | -0.73 |
| 196308 | -0.98 |
| 196309 | 1.10 |
| 196310 | 0.69 |
| 196311 | -0.31 |
| 196312 | 1.77 |
| 196401 | 0.16 |
| 196402 | 1.24 |
| 196403 | -1.04 |
| 196404 | -1.09 |
| 196405 | -2.68 |
| 196406 | 0.15 |
| 196407 | 0.66 |
| 196408 | 0.86 |
| 196409 | 1.15 |
| 196410 | 0.58 |
| 196411 | -0.81 |
| 196412 | -1.73 |
| 196501 | -0.21 |
| 196502 | -0.55 |
| 196503 | -0.52 |
| 196504 | -0.85 |
| 196505 | -0.57 |
| 196506 | 1.67 |
| 196507 | -0.90 |
| 196508 | 0.35 |
| 196509 | 0.48 |
| 196510 | 1.14 |
| 196511 | -0.84 |
| 196512 | -1.26 |
| 196601 | 0.39 |
| 196602 | -1.31 |
| 196603 | 0.74 |
| 196604 | -0.31 |
| 196605 | -0.27 |
| 196606 | -0.01 |
| 196607 | -0.81 |
| 196608 | 1.29 |
| 196609 | 0.81 |
| 196610 | -0.70 |
| 196611 | -2.04 |
| 196612 | 0.09 |
| 196701 | -0.40 |
| 196702 | 0.07 |
| 196703 | -2.00 |
| 196704 | -1.72 |
| 196705 | -1.01 |
| 196706 | -0.41 |
| 196707 | -0.88 |
| 196708 | -0.32 |
| 196709 | 0.18 |
| 196710 | 0.85 |
| 196711 | -0.36 |
| 196712 | -0.82 |
| 196801 | -0.88 |
| 196802 | 1.05 |
| 196803 | 0.44 |
| 196804 | -0.89 |
| 196805 | 0.17 |
| 196806 | -0.18 |
| 196807 | 0.41 |
| 196808 | 1.33 |
| 196809 | -0.99 |
| 196810 | 0.26 |
| 196811 | 0.88 |
| 196812 | -1.44 |
| 196901 | -1.80 |
| 196902 | -1.25 |
| 196903 | 0.78 |
| 196904 | 0.74 |
| 196905 | 1.06 |
| 196906 | 1.88 |
| 196907 | 0.99 |
| 196908 | -0.66 |
| 196909 | 1.62 |
| 196910 | 0.35 |
| 196911 | 0.15 |
| 196912 | 1.84 |
| 197001 | 0.60 |
| 197002 | 0.98 |
| 197003 | 0.81 |
| 197004 | -0.43 |
| 197005 | -0.66 |
| 197006 | 0.11 |
| 197007 | 1.24 |
| 197008 | -0.57 |
| 197009 | -0.42 |
| 197010 | -1.01 |
| 197011 | -1.19 |
| 197012 | -0.79 |
| 197101 | -1.39 |
| 197102 | 0.10 |
| 197103 | 0.02 |
| 197104 | 0.48 |
| 197105 | 1.14 |
| 197106 | 0.38 |
| 197107 | -1.41 |
| 197108 | -0.78 |
| 197109 | 0.23 |
| 197110 | -1.37 |
| 197111 | -0.26 |
| 197112 | -1.46 |
| 197201 | -1.41 |
| 197202 | -1.48 |
| 197203 | 0.20 |
| 197204 | -1.76 |
| 197205 | 0.14 |
| 197206 | -0.24 |
| 197207 | -0.76 |
| 197208 | -0.01 |
| 197209 | 0.21 |
| 197210 | -1.50 |
| 197211 | 0.56 |
| 197212 | -0.56 |
| 197301 | -0.18 |
| 197302 | 0.12 |
| 197303 | 0.85 |
| 197304 | 0.36 |
| 197305 | 0.66 |
| 197306 | 0.84 |
| 197307 | 0.17 |
| 197308 | -0.92 |
| 197309 | -0.28 |
| 197310 | -0.82 |
| 197311 | -1.73 |
| 197312 | 0.53 |
| 197401 | -0.69 |
| 197402 | -0.90 |
| 197403 | -0.82 |
| 197404 | -0.50 |
| 197405 | -0.55 |
| 197406 | -1.38 |
| 197407 | 0.35 |
| 197408 | 0.93 |
| 197409 | 0.47 |
| 197410 | 0.69 |
| 197411 | 0.57 |
| 197412 | 0.68 |
| 197501 | -0.43 |
| 197502 | -0.16 |
| 197503 | -0.53 |
| 197504 | -0.44 |
| 197505 | 0.59 |
| 197506 | -0.39 |
| 197507 | -1.19 |
| 197508 | -1.07 |
| 197509 | -0.23 |
| 197510 | -0.74 |
| 197511 | -0.65 |
| 197512 | 0.14 |
| 197601 | 0.31 |
| 197602 | -1.56 |
| 197603 | -1.52 |
| 197604 | 1.19 |
| 197605 | 0.56 |
| 197606 | -1.34 |
| 197607 | 0.32 |
| 197608 | -0.59 |
| 197609 | 0.00 |
| 197610 | 0.68 |
| 197611 | 1.81 |
| 197612 | 0.51 |
| 197701 | 1.75 |
| 197702 | 2.04 |
| 197703 | -0.40 |
| 197704 | -0.08 |
| 197705 | -0.73 |
| 197706 | 0.43 |
| 197707 | -0.67 |
| 197708 | 2.22 |
| 197709 | -0.82 |
| 197710 | 0.98 |
| 197711 | -0.22 |
| 197712 | -0.50 |
| 197801 | 0.61 |
| 197802 | 1.27 |
| 197803 | 0.12 |
| 197804 | 0.05 |
| 197805 | -0.92 |
| 197806 | -0.97 |
| 197807 | -2.15 |
| 197808 | 0.05 |
| 197809 | 1.71 |
| 197810 | 0.48 |
| 197811 | -0.49 |
| 197812 | -0.72 |
| 197901 | -0.69 |
| 197902 | -1.82 |
| 197903 | 0.38 |
| 197904 | 0.09 |
| 197905 | 1.35 |
| 197906 | -1.64 |
| 197907 | 0.99 |
| 197908 | 0.70 |
| 197909 | 1.28 |
| 197910 | 1.53 |
| 197911 | 0.54 |
| 197912 | -0.38 |
| 198001 | -0.28 |
| 198002 | 1.74 |
| 198003 | -0.35 |
| 198004 | 1.96 |
| 198005 | -0.28 |
| 198006 | -0.86 |
| 198007 | -0.42 |
| 198008 | -1.99 |
| 198009 | -0.05 |
| 198010 | 2.45 |
| 198011 | 1.35 |
| 198012 | -0.27 |
| 198101 | 2.42 |
| 198102 | 0.38 |
| 198103 | 1.60 |
| 198104 | -1.02 |
| 198105 | 1.98 |
| 198106 | -0.20 |
| 198107 | -0.64 |
| 198108 | -1.50 |
| 198109 | 0.15 |
| 198110 | -1.45 |
| 198111 | 1.26 |
| 198112 | -0.12 |
| 198201 | -0.86 |
| 198202 | -0.68 |
| 198203 | -1.40 |
| 198204 | -1.89 |
| 198205 | -0.70 |
| 198206 | 1.93 |
| 198207 | 0.97 |
| 198208 | 0.34 |
| 198209 | 1.05 |
| 198210 | -0.93 |
| 198211 | -0.48 |
| 198212 | 0.75 |
| 198301 | 1.18 |
| 198302 | 1.30 |
| 198303 | 2.38 |
| 198304 | 1.26 |
| 198305 | -0.19 |
| 198306 | 1.87 |
| 198307 | 1.33 |
| 198308 | 0.53 |
| 198309 | -1.59 |
| 198310 | 0.09 |
| 198311 | 1.84 |
| 198312 | -0.31 |
| 198401 | 0.97 |
| 198402 | 0.77 |
| 198403 | 1.41 |
| 198404 | 1.70 |
| 198405 | 0.32 |
| 198406 | -0.44 |
| 198407 | -2.34 |
| 198408 | -1.11 |
| 198409 | 0.03 |
| 198410 | -0.63 |
| 198411 | 0.42 |
| 198412 | -1.60 |
| 198501 | 1.63 |
| 198502 | -0.52 |
| 198503 | -0.92 |
| 198504 | -1.06 |
| 198505 | -1.03 |
| 198506 | 1.10 |
| 198507 | 0.25 |
| 198508 | -0.50 |
| 198509 | -0.71 |
| 198510 | -1.51 |
| 198511 | -1.90 |
| 198512 | 1.39 |
| 198601 | 0.97 |
| 198602 | 0.53 |
| 198603 | 0.83 |
| 198604 | 0.09 |
| 198605 | -0.13 |
| 198606 | 0.26 |
| 198607 | 0.07 |
| 198608 | -1.45 |
| 198609 | -0.29 |
| 198610 | 0.92 |
| 198611 | -0.73 |
| 198612 | 1.37 |
| 198701 | 1.00 |
| 198702 | 0.65 |
| 198703 | 1.17 |
| 198704 | 1.83 |
| 198705 | -1.26 |
| 198706 | 0.42 |
| 198707 | -0.01 |
| 198708 | 0.77 |
| 198709 | -3.07 |
| 198710 | 0.53 |
| 198711 | 1.26 |
| 198712 | 0.80 |
| 198801 | 0.53 |
| 198802 | 1.25 |
| 198803 | 0.69 |
| 198804 | 1.40 |
| 198805 | 0.60 |
| 198806 | 1.13 |
| 198807 | 2.16 |
| 198808 | -0.59 |
| 198809 | -1.11 |
| 198810 | 0.66 |
| 198811 | 0.13 |
| 198812 | 0.63 |
| 198901 | -0.72 |
| 198902 | -1.06 |
| 198903 | -1.30 |
| 198904 | -0.54 |
| 198905 | -0.14 |
| 198906 | -0.63 |
| 198907 | -0.18 |
| 198908 | -0.24 |
| 198909 | 0.54 |
| 198910 | -1.13 |
| 198911 | -0.72 |
| 198912 | 0.87 |
| 199001 | -0.34 |
| 199002 | -1.86 |
| 199003 | 0.34 |
| 199004 | -0.39 |
| 199005 | 0.21 |
| 199006 | -1.41 |
| 199007 | 0.17 |
| 199008 | 1.79 |
| 199009 | -0.50 |
| 199010 | -0.97 |
| 199011 | -1.73 |
| 199012 | -1.32 |
| 199101 | 0.66 |
| 199102 | 1.07 |
| 199103 | -0.94 |
| 199104 | 0.64 |
| 199105 | -0.81 |
| 199106 | -0.97 |
| 199107 | 0.75 |
| 199108 | -0.25 |
| 199109 | 1.43 |
| 199110 | -2.28 |
| 199111 | 0.24 |
| 199112 | 0.47 |
| 199201 | 1.28 |
| 199202 | 0.29 |
| 199203 | 0.77 |
| 199204 | -0.05 |
| 199205 | 1.27 |
| 199206 | 1.17 |
| 199207 | 0.85 |
| 199208 | -0.34 |
| 199209 | -1.31 |
| 199210 | 0.21 |
| 199211 | 0.85 |
| 199212 | -1.23 |
| 199301 | -0.65 |
| 199302 | 0.55 |
| 199303 | 1.27 |
| 199304 | 1.54 |
| 199305 | 2.66 |
| 199306 | 0.52 |
| 199307 | 0.15 |
| 199308 | -0.14 |
| 199309 | -1.12 |
| 199310 | -0.30 |
| 199311 | -0.36 |
| 199312 | 0.72 |
| 199401 | -0.12 |
| 199402 | -0.73 |
| 199403 | 0.54 |
| 199404 | -0.47 |
| 199405 | 0.45 |
| 199406 | -1.38 |
| 199407 | 0.38 |
| 199408 | -1.34 |
| 199409 | -2.38 |
| 199410 | -0.23 |
| 199411 | -1.67 |
| 199412 | 0.69 |
| 199501 | 0.66 |
| 199502 | 0.73 |
| 199503 | 0.33 |
| 199504 | 0.29 |
| 199505 | 0.01 |
| 199506 | 0.74 |
| 199507 | -0.34 |
| 199508 | -0.30 |
| 199509 | 1.52 |
| 199510 | -0.05 |
| 199511 | -0.75 |
| 199512 | 0.92 |
| 199601 | -0.02 |
| 199602 | -0.30 |
| 199603 | -0.47 |
| 199604 | 0.77 |
| 199605 | 0.32 |
| 199606 | -1.21 |
| 199607 | 0.64 |
| 199608 | -0.90 |
| 199609 | -0.28 |
| 199610 | -0.76 |
| 199611 | -0.45 |
| 199612 | -1.23 |
| 199701 | 0.63 |
| 199702 | 0.56 |
| 199703 | -1.30 |
| 199704 | 0.55 |
| 199705 | 0.78 |
| 199706 | -0.34 |
| 199707 | 0.56 |
| 199708 | -0.52 |
| 199709 | 0.31 |
| 199710 | -0.26 |
| 199711 | 0.91 |
| 199712 | 1.16 |
| 199801 | 0.74 |
| 199802 | 0.89 |
| 199803 | 1.01 |
| 199804 | 1.12 |
| 199805 | -2.22 |
| 199806 | -0.02 |
| 199807 | 2.24 |
| 199808 | -0.57 |
| 199809 | 0.55 |
| 199810 | 0.55 |
| 199811 | 0.74 |
| 199812 | -0.09 |
| 199901 | 0.16 |
| 199902 | -0.12 |
| 199903 | 0.69 |
| 199904 | 0.30 |
| 199905 | -0.15 |
| 199906 | 0.30 |
| 199907 | -0.54 |
| 199908 | 1.97 |
| 199909 | 0.44 |
| 199910 | 0.41 |
| 199911 | 0.48 |
| 199912 | 0.21 |
| 200001 | -0.82 |
| 200002 | 1.12 |
| 200003 | 1.28 |
| 200004 | -0.35 |
| 200005 | -0.28 |
| 200006 | -1.22 |
| 200007 | -2.28 |
| 200008 | -0.48 |
| 200009 | -1.40 |
| 200010 | 0.25 |
| 200011 | 0.74 |
| 200012 | 1.23 |
| 200101 | 1.51 |
| 200102 | -0.16 |
| 200103 | 0.70 |
| 200104 | -0.47 |
| 200105 | -0.11 |
| 200106 | -0.94 |
| 200107 | 0.06 |
| 200108 | -0.11 |
| 200109 | 0.10 |
| 200110 | -0.22 |
| 200111 | 1.09 |
| 200112 | 0.56 |
| 200201 | -0.04 |
| 200202 | 0.14 |
| 200203 | -1.30 |
| 200204 | -2.22 |
| 200205 | -0.73 |
| 200206 | -0.05 |
| 200207 | 0.88 |
| 200208 | 0.64 |
| 200209 | 0.77 |
| 200210 | -0.65 |
| 200211 | 1.54 |
| 200212 | 1.59 |
| 200301 | 1.29 |
| 200302 | 0.73 |
| 200303 | -0.07 |
| 200304 | 0.14 |
| 200305 | -2.20 |
| 200306 | -0.60 |
| 200307 | 1.23 |
| 200308 | -0.28 |
| 200309 | 0.76 |
| 200310 | 0.97 |
| 200311 | -1.72 |
| 200312 | 0.86 |
| 200401 | 0.41 |
| 200402 | 1.06 |
| 200403 | 0.30 |
| 200404 | 0.51 |
| 200405 | -1.76 |
| 200406 | -0.37 |
| 200407 | 0.09 |
| 200408 | 1.55 |
| 200409 | -0.08 |
| 200410 | -1.39 |
| 200411 | 0.31 |
| 200412 | 0.26 |
| 200501 | 0.02 |
| 200502 | 0.14 |
| 200503 | 0.88 |
| 200504 | 1.28 |
| 200505 | 1.74 |
| 200506 | 0.29 |
| 200507 | 0.43 |
| 200508 | 0.72 |
| 200509 | 1.63 |
| 200510 | 0.90 |
| 200511 | -0.76 |
| 200512 | 1.38 |
| 200601 | 0.43 |
| 200602 | -0.11 |
| 200603 | -0.27 |
| 200604 | 0.45 |
| 200605 | -1.27 |
| 200606 | -1.06 |
| 200607 | 1.83 |
| 200608 | -1.41 |
| 200609 | 0.42 |
| 200610 | -0.84 |
| 200611 | -1.39 |
| 200612 | 1.86 |
| 200701 | 0.72 |
| 200702 | -0.09 |
| 200703 | 0.18 |
| 200704 | 1.25 |
| 200705 | -0.06 |
| 200706 | -0.38 |
| 200707 | 2.21 |
| 200708 | 1.98 |
| 200709 | 1.88 |
| 200710 | 0.55 |
| 200711 | 0.69 |
| 200712 | 0.14 |
| 200801 | -0.32 |
| 200802 | 0.50 |
| 200803 | -0.32 |
| 200804 | -0.97 |
| 200805 | 1.33 |
| 200806 | -1.75 |
| 200807 | -0.10 |
| 200808 | 0.92 |
| 200809 | 1.12 |
| 200810 | 0.86 |
| 200811 | 1.11 |
| 200812 | -1.41 |
| 200901 | 0.61 |
| 200902 | -0.95 |
| 200903 | -1.02 |
| 200904 | 0.21 |
| 200905 | -0.58 |
| 200906 | 0.35 |
| 200907 | 1.22 |
| 200908 | 0.65 |
| 200909 | 1.29 |
| 200910 | 0.43 |
| 200911 | 0.21 |
| 200912 | 0.34 |
| 201001 | 1.25 |
| 201002 | 0.58 |
| 201003 | 2.02 |
| 201004 | 1.54 |
| 201005 | -0.93 |
| 201006 | -0.20 |
| 201007 | 1.40 |
| 201008 | 1.10 |
| 201009 | 1.34 |
| 201010 | 1.80 |
| 201011 | -0.84 |
| 201012 | -1.78 |
| 201101 | 1.29 |
| 201102 | -1.58 |
| 201103 | 0.69 |
| 201104 | -1.59 |
| 201105 | 0.19 |
| 201106 | 0.22 |
| 201107 | -0.35 |
| 201108 | 1.42 |
| 201109 | -0.42 |
| 201110 | 0.63 |
| 201111 | -0.79 |
| 201112 | 0.36 |
| 201201 | 0.60 |
| 201202 | 0.75 |
| 201203 | 0.11 |
| 201204 | 0.15 |
| 201205 | -0.42 |
| 201206 | -0.50 |
| 201207 | -0.16 |
| 201208 | -0.17 |
| 201209 | -0.42 |
| 201210 | -1.18 |
| 201211 | -1.10 |
| 201212 | -1.01 |
| 201301 | 0.55 |
| 201302 | 0.45 |
| 201303 | 0.04 |
| 201304 | -1.56 |
| 201305 | -0.36 |
| 201306 | -0.43 |
| 201307 | -0.31 |
| 201308 | -0.03 |
| 201309 | 0.54 |
| 201310 | -0.34 |
| 201311 | -1.18 |
| 201312 | -0.86 |
| 201401 | 0.97 |
| 201402 | -0.95 |
| 201403 | -0.21 |
| 201404 | 0.25 |
| 201405 | -0.76 |
| 201406 | -1.46 |
| 201407 | 0.99 |
| 201408 | 1.37 |
| 201409 | 0.99 |
| 201410 | 0.89 |
| 201411 | 0.68 |
| 201412 | 0.67 |
| 201501 | 0.61 |
| 201502 | 0.59 |
| 201503 | -0.23 |
| 201504 | -0.15 |
| 201505 | -0.16 |
| 201506 | -0.17 |
| 201507 | 0.76 |
| 201508 | 0.08 |
| 201509 | -0.92 |
| 201510 | 1.78 |
| 201511 | -0.19 |
