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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 40.20" | 40.58" | 40.43" | 54.46" | 38.04" | 39.16" | 25.89" | 45.19" | 40.78" | 42.22" | 47.29" | 39.38" | 40.98" | 43.95" | 45.39" | 38.07" | 37.54" | 39.13" | 38.18" | 34.79" | 50.00" | 40.58" | 32.38" | 37.88" | 40.58" | 37.72" | 44.90" | 39.71" | 42.32" | 40.19" | 39.40" | 43.14" | 55.71" | 46.07" | 46.90" | 31.45" | 40.56" | 37.39" | 37.77" | 34.97" | 48.16" | 29.53" | 37.59" | 41.17" | 38.34" | 32.79" | 43.26" | 46.71" | 38.30" | 39.97" | 52.13" | 43.54" | 40.39" | 39.74" | 47.96" | 39.94" | 50.71" | 32.51" | 25.35" | 34.95" | 33.57" | 31.23" | 48.10" | 43.11" | 38.33" | 34.58" | 47.57" | 35.21" | 29.10" | 37.27" | 43.44" | 34.95" | 42.41" | 41.08" | 43.71" | 43.65" | 33.95" | 38.58" | 56.88" | 43.05" | 42.21" | 28.42" | 44.21" | 40.34" | 40.29" | 28.96" | 44.76" | 51.06" | 41.56" | 46.75" | 52.81" | 42.54" | 40.47" | 35.01" | 33.44" | 51.42" | 38.80" | 41.58" | 56.90" | 42.55" | 42.30" | 43.80" | 40.26" | 50.16" | 37.74" | 36.16" | 44.37" | 41.15" | 41.14" | 45.57" | 37.41" | 38.48" | 40.37" | 57.34" | 52.08" | 45.30" | 45.45" | 30.64" |
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