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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 47.69" | 44.75" | 56.42" | 48.83" | 49.96" | 47.00" | 58.79" | 53.62" | 37.12" | 42.48" | 41.39" | 43.66" | 51.16" | 45.65" | 42.94" | 40.51" | 42.81" | 47.96" | 41.71" | 36.65" | 43.28" | 50.42" | 48.05" | 49.55" | 45.56" | 51.01" | 39.22" | 48.68" | 39.71" | 45.14" | 44.67" | 41.15" | 48.33" | 46.17" | 44.61" | 35.48" | 43.80" | 41.91" | 41.71" | 42.24" | 44.62" | 42.35" | 40.94" | 43.56" | 36.14" | 39.79" | 35.97" | 35.38" | 41.81" | 39.70" | 43.35" | 39.43" | 34.52" | 39.80" | 37.20" | 44.62" | 48.37" | 41.04" | 40.93" | 57.58" | 33.25" | 32.71" | 40.92" | 40.33" | 46.04" | 40.28" | 39.84" | 43.91" | 40.57" | 32.34" | 34.38" | 33.77" | 41.90" | 38.99" | 46.77" | 41.25" | 36.95" | 44.63" | 50.82" | 40.36" | 42.13" | 48.56" | 48.03" | 38.63" | 40.11" | 36.43" | 47.55" | 38.86" | 53.39" | 37.69" | 37.31" | 37.08" | 36.28" | 36.76" | 41.86" | 50.15" | 43.71" | 34.72" | 43.88" | 39.96" | 42.45" | 48.95" | 41.16" | 45.44" | 42.23" | 40.60" | 30.50" | 38.74" | 41.18" | 42.43" | 59.60" | 51.42" | 51.27" | 50.31" | 52.47" | 48.05" | 46.93" | 48.56" |
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