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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 36.40" | 36.92" | 41.82" | 49.54" | 37.26" | 39.60" | 44.62" | 40.90" | 40.41" | 32.95" | 36.99" | 37.64" | 42.44" | 37.37" | 33.40" | 30.12" | 39.42" | 35.76" | 38.31" | 30.33" | 40.26" | 35.77" | 36.28" | 34.96" | 44.07" | 39.79" | 37.07" | 43.89" | 34.52" | 31.68" | 37.81" | 33.97" | 47.37" | 42.78" | 29.76" | 36.41" | 44.06" | 49.19" | 44.88" | 43.61" | 45.07" | 43.63" | 44.10" | 57.45" | 37.81" | 35.97" | 37.54" | 43.94" | 39.57" | 41.65" | 46.68" | 42.80" | 41.09" | 45.29" | 35.79" | 41.51" | 48.46" | 50.08" | 43.03" | 51.95" | 56.79" | 35.41" | 44.12" | 43.17" | 46.86" | 44.62" | 42.19" | 41.32" | 40.49" | 29.51" | 29.16" | 39.90" | 45.44" | 45.54" | 48.06" | 40.43" | 45.07" | 58.56" | 50.61" | 45.57" | 54.90" | 44.39" | 52.39" | 49.22" | 44.95" | 34.78" | 44.42" | 57.29" | 53.06" | 39.29" | 46.60" | 54.86" | 38.87" | 40.79" | 53.99" | 49.46" | 45.99" | 51.16" | 44.64" | 42.45" | 49.97" | 56.73" | 45.10" | 48.62" | 47.51" | 49.71" | 37.72" | 50.91" | 51.13" | 52.57" | 51.82" | 61.66" | 48.71" | 54.27" | 61.39" | 47.07" | 53.78" | 45.93" |
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