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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 39.73" | 48.18" | 43.29" | 46.22" | 34.89" | 39.06" | 34.75" | 48.65" | 39.30" | 36.52" | 42.90" | 47.72" | 48.05" | 40.08" | 41.12" | 39.52" | 47.75" | 44.94" | 34.54" | 37.96" | 50.78" | 42.28" | 37.11" | 40.63" | 46.79" | 39.51" | 48.93" | 40.10" | 43.06" | 36.77" | 39.44" | 57.16" | 41.51" | 51.93" | 40.38" | 29.50" | 42.46" | 49.14" | 30.81" | 46.00" | 38.25" | 43.82" | 43.32" | 43.74" | 36.23" | 30.32" | 42.68" | 47.53" | 39.44" | 43.15" | 45.51" | 41.22" | 41.47" | 45.58" | 51.26" | 45.28" | 47.43" | 36.98" | 30.13" | 41.76" | 39.37" | 42.50" | 42.71" | 44.19" | 39.12" | 41.35" | 45.11" | 37.11" | 35.97" | 39.36" | 40.01" | 39.88" | 43.26" | 39.35" | 43.34" | 41.17" | 41.70" | 52.54" | 50.18" | 47.35" | 41.30" | 34.51" | 46.55" | 47.16" | 42.92" | 38.39" | 45.38" | 48.45" | 44.39" | 43.45" | 42.73" | 40.75" | 37.80" | 43.24" | 47.72" | 49.10" | 36.21" | 46.02" | 51.55" | 44.09" | 43.63" | 48.21" | 43.74" | 45.94" | 35.64" | 40.30" | 50.29" | 42.18" | 49.52" | 46.52" | 39.77" | 43.97" | 48.39" | 46.55" | 48.91" | 49.28" | 43.05" |
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