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.
| 1895 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 26.90" | 27.77" | 34.34" | 33.85" | 24.94" | 27.49" | 36.89" | 34.50" | 30.03" | 29.74" | 30.51" | 31.76" | 34.52" | 25.51" | 26.48" | 27.04" | 30.54" | 31.61" | 28.35" | 26.64" | 31.43" | 30.78" | 31.35" | 31.10" | 32.75" | 34.60" | 28.64" | 29.83" | 28.25" | 29.98" | 29.75" | 31.37" | 36.93" | 31.92" | 31.67" | 22.95" | 31.35" | 31.10" | 32.92" | 30.85" | 30.28" | 30.33" | 34.94" | 34.82" | 26.85" | 32.89" | 26.24" | 34.44" | 31.95" | 31.04" | 39.61" | 31.50" | 32.49" | 34.77" | 27.65" | 32.33" | 33.91" | 31.94" | 30.03" | 36.81" | 30.85" | 31.43" | 29.01" | 32.72" | 33.88" | 31.19" | 31.57" | 30.49" | 26.81" | 25.00" | 24.63" | 27.22" | 33.86" | 31.63" | 35.65" | 32.83" | 30.40" | 40.68" | 38.69" | 32.73" | 37.35" | 34.40" | 38.71" | 29.17" | 34.61" | 28.97" | 34.45" | 29.41" | 40.28" | 34.64" | 31.94" | 33.76" | 32.86" | 29.74" | 37.18" | 40.61" | 30.03" | 32.60" | 33.09" | 32.39" | 31.23" | 43.19" | 30.10" | 30.46" | 30.41" | 34.86" | 24.93" | 35.40" | 41.95" | 39.79" | 40.25" | 42.37" | 35.48" | 38.04" | 39.44" | 34.61" | 45.56" | 35.90" |
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