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.
| 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 | 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 32.40" | 41.83" | 45.25" | 43.40" | 37.93" | 40.10" | 45.20" | 46.73" | 42.80" | 39.09" | 37.41" | 41.24" | 41.93" | 36.76" | 38.87" | 34.86" | 38.92" | 42.78" | 38.79" | 37.25" | 38.15" | 40.87" | 40.08" | 38.58" | 41.38" | 43.74" | 36.90" | 41.48" | 36.88" | 37.95" | 38.92" | 39.99" | 44.62" | 41.08" | 40.48" | 31.26" | 40.33" | 39.36" | 42.48" | 40.29" | 39.60" | 44.35" | 43.08" | 42.88" | 35.81" | 42.44" | 32.40" | 44.12" | 38.74" | 40.63" | 47.17" | 39.74" | 40.42" | 44.11" | 36.27" | 42.46" | 45.93" | 42.14" | 40.68" | 44.38" | 41.42" | 41.41" | 37.74" | 41.98" | 42.52" | 39.52" | 40.93" | 38.08" | 36.07" | 33.20" | 32.72" | 34.25" | 41.44" | 38.59" | 41.18" | 41.21" | 40.09" | 51.75" | 47.28" | 42.62" | 48.03" | 42.65" | 52.17" | 40.37" | 42.12" | 35.77" | 44.31" | 37.61" | 49.24" | 44.01" | 40.94" | 43.09" | 38.14" | 36.65" | 46.73" | 48.55" | 38.30" | 41.10" | 44.84" | 43.33" | 40.69" | 51.50" | 41.42" | 43.61" | 39.82" | 43.19" | 34.50" | 43.49" | 50.48" | 47.99" | 50.54" | 49.20" | 44.03" | 51.26" | 46.59" | 45.23" | 56.89" | 41.62" |
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