Choose from the options below and click "Plot" to create a time series graph.
Data are available from January 1895 through April 2013.
Move mouse towards an axis until highlighted. Left-click mouse to pan. Shift key + left-click to zoom.
| 1895 | 1896 | 1897 | 1898 | 1899 | 1900 | 1901 | 1902 | 1903 | 1904 | 1905 | 1906 | 1907 | 1908 | 1909 | 1910 | 1911 | 1912 | 1913 | 1914 | 1915 | 1916 | 1917 | 1918 | 1919 | 1920 | 1921 | 1922 | 1923 | 1924 | 1925 | 1926 | 1927 | 1928 | 1929 | 1930 | 1931 | 1932 | 1933 | 1934 | 1935 | 1936 | 1937 | 1938 | 1939 | 1940 | 1941 | 1942 | 1943 | 1944 | 1945 | 1946 | 1947 | 1948 | 1949 | 1950 | 1951 | 1952 | 1953 | 1954 | 1955 | 1956 | 1957 | 1958 | 1959 | 1960 | 1961 | 1962 | 1963 | 1964 | 1965 | 1966 | 1967 | 1968 | 1969 | 1970 | 1971 | 1972 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 34.54" | 38.87" | 51.78" | 45.72" | 35.88" | 43.35" | 38.04" | 43.30" | 37.80" | 37.09" | 37.88" | 35.31" | 37.93" | 31.88" | 38.54" | 36.57" | 32.93" | 43.12" | 34.80" | 33.63" | 36.11" | 37.50" | 36.03" | 40.15" | 39.44" | 43.11" | 35.98" | 41.21" | 37.81" | 38.60" | 43.82" | 39.04" | 44.15" | 40.23" | 40.85" | 35.81" | 35.29" | 37.61" | 32.44" | 31.61" | 35.22" | 40.35" | 38.17" | 37.95" | 33.93" | 36.67" | 27.54" | 36.17" | 40.72" | 33.60" | 46.67" | 34.71" | 38.76" | 34.44" | 32.30" | 34.43" | 38.62" | 33.79" | 33.98" | 43.24" | 36.20" | 32.84" | 29.16" | 36.07" | 37.75" | 36.12" | 31.75" | 35.06" | 29.94" | 29.50" | 30.50" | 31.74" | 32.75" | 33.57" | 36.86" | 30.83" | 34.95" | 38.66" | 42.08" | 40.19" | 40.41" | 45.89" | 40.24" | 33.68" | 38.32" | 31.14" | 40.85" | 33.02" | 46.80" | 38.91" | 35.59" | 42.00" | 36.55" | 34.19" | 42.03" | 47.41" | 38.15" | 35.65" | 38.03" | 39.22" | 39.11" | 45.91" | 40.35" | 46.47" | 39.84" | 43.17" | 30.46" | 43.48" | 42.45" | 37.28" | 47.14" | 48.69" | 43.49" | 46.94" | 41.99" | 44.50" | 52.32" | 36.09" |
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