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 |
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| 250 | 132 | 165 | 168 | 211 | 83 | 223 | 176 | 201 | 257 | 242 | 307 | 314 | 297 | 193 | 181 | 180 | 246 | 207 | 219 | 356 | 280 | 289 | 102 | 121 | 235 | 143 | 138 | 207 | 215 | 207 | 175 | 198 | 319 | 213 | 198 | 107 | 190 | 95 | 170 | 202 | 112 | 224 | 164 | 230 | 123 | 205 | 239 | 229 | 247 | 326 | 181 | 293 | 168 | 205 | 217 | 331 | 131 | 155 | 183 | 240 | 100 | 209 | 169 | 108 | 145 | 110 | 192 | 173 | 228 | 220 | 194 | 260 | 195 | 288 | 177 | 161 | 146 | 172 | 128 | 257 | 215 | 92 | 185 | 186 | 155 | 160 | 250 | 223 | 213 | 180 | 103 | 144 | 57 | 198 | 148 | 155 | 171 | 263 | 129 | 245 | 143 | 148 | 315 | 209 | 182 | 154 | 125 | 231 | 206 | 186 | 91 | 148 | 228 | 249 | 206 | 231 | 105 |
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