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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 29.13" | 33.64" | 36.95" | 31.74" | 37.27" | 23.80" | 35.56" | 35.09" | 32.10" | 35.40" | 38.35" | 30.45" | 46.42" | 27.84" | 26.45" | 24.23" | 31.17" | 26.24" | 32.76" | 44.68" | 29.01" | 25.88" | 23.47" | 36.04" | 37.97" | 37.15" | 30.02" | 37.06" | 37.41" | 27.62" | 35.33" | 42.92" | 33.30" | 37.65" | 29.46" | 29.78" | 37.30" | 32.46" | 26.57" | 35.54" | 25.24" | 28.21" | 35.98" | 25.79" | 29.54" | 40.64" | 45.80" | 30.91" | 34.85" | 48.20" | 27.30" | 35.36" | 34.39" | 37.27" | 39.61" | 30.28" | 25.66" | 28.45" | 24.65" | 31.73" | 18.68" | 47.60" | 36.56" | 32.67" | 38.78" | 38.50" | 34.20" | 24.60" | 29.39" | 33.28" | 26.61" | 29.24" | 36.20" | 35.98" | 30.20" | 29.69" | 29.35" | 48.86" | 38.28" | 40.57" | 27.91" | 32.78" | 27.11" | 33.62" | 28.90" | 30.33" | 38.58" | 31.85" | 30.71" | 46.16" | 40.69" | 43.46" | 33.41" | 39.65" | 39.23" | 33.60" | 43.55" | 43.41" | 32.01" | 45.22" | 32.62" | 39.12" | 34.39" | 43.95" | 30.93" | 38.53" | 33.14" | 32.34" | 34.33" | 37.72" | 24.12" | 48.40" | 40.31" | 33.77" | 37.43" | 20.05" | 32.65" |
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