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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 29.78" | 43.37" | 41.33" | 43.94" | 34.93" | 35.06" | 29.90" | 44.28" | 36.66" | 35.61" | 43.30" | 42.44" | 44.65" | 35.24" | 44.76" | 36.32" | 40.20" | 45.01" | 39.95" | 31.07" | 45.22" | 36.10" | 37.45" | 37.82" | 39.52" | 37.90" | 44.82" | 40.34" | 42.28" | 35.60" | 37.12" | 43.65" | 48.62" | 38.91" | 48.98" | 23.29" | 42.74" | 40.64" | 37.71" | 31.25" | 39.62" | 41.27" | 38.80" | 44.61" | 34.78" | 30.87" | 35.65" | 38.58" | 38.27" | 34.96" | 49.24" | 35.57" | 41.20" | 47.88" | 50.23" | 45.44" | 41.86" | 37.11" | 31.95" | 38.11" | 41.95" | 34.18" | 46.77" | 46.72" | 39.47" | 32.14" | 46.28" | 30.37" | 30.80" | 40.25" | 37.29" | 36.53" | 39.60" | 44.19" | 37.11" | 41.90" | 34.30" | 44.75" | 47.02" | 44.28" | 43.48" | 30.99" | 42.78" | 42.15" | 44.60" | 36.57" | 46.28" | 40.27" | 41.72" | 43.84" | 44.04" | 38.62" | 37.13" | 35.07" | 46.53" | 50.73" | 35.24" | 43.82" | 47.32" | 36.00" | 39.46" | 50.63" | 38.92" | 48.67" | 33.39" | 41.22" | 45.10" | 42.13" | 47.18" | 49.23" | 37.25" | 54.61" | 43.50" | 47.03" | 45.28" | 40.50" | 53.90" | 36.43" |
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