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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 37.04" | 31.22" | 32.75" | 28.70" | 31.71" | 39.96" | 35.68" | 27.47" | 38.66" | 26.39" | 31.20" | 33.09" | 32.36" | 34.57" | 42.79" | 31.83" | 32.08" | 47.46" | 35.04" | 24.13" | 30.69" | 37.58" | 38.20" | 30.12" | 40.81" | 44.88" | 30.37" | 40.62" | 41.64" | 32.57" | 24.49" | 32.76" | 29.52" | 39.13" | 49.26" | 22.16" | 24.27" | 43.11" | 35.13" | 45.55" | 37.76" | 39.85" | 44.67" | 42.87" | 42.50" | 43.05" | 35.93" | 32.67" | 35.44" | 41.71" | 37.27" | 47.57" | 42.34" | 44.55" | 39.74" | 37.47" | 37.65" | 32.98" | 38.44" | 26.37" | 39.49" | 37.12" | 39.25" | 33.69" | 35.25" | 32.34" | 48.89" | 36.57" | 41.43" | 45.58" | 35.38" | 44.65" | 39.63" | 33.50" | 34.28" | 36.77" | 45.96" | 39.90" | 45.54" | 41.79" | 48.94" | 43.22" | 41.86" | 34.92" | 56.18" | 44.59" | 31.31" | 46.12" | 42.93" | 39.75" | 34.56" | 19.53" | 35.58" | 28.82" | 45.76" | 41.00" | 41.32" | 35.46" | 33.29" | 42.86" | 33.80" | 41.46" | 43.02" | 41.38" | 38.17" | 31.74" | 44.49" | 31.28" | 52.71" | 33.19" | 41.34" | 32.75" | 18.41" | 41.43" | 41.24" | 36.94" | 34.15" | 35.29" |
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