1880.5  -157.1    24.2
1881.5  -151.5    24.2
1882.5  -168.3    23.0
1883.5  -163.0    22.8
1884.5  -142.1    22.2
1885.5  -143.6    21.9
1886.5  -146.0    20.8
1887.5  -151.6    20.8
1888.5  -149.5    20.8
1889.5  -147.9    20.8
1890.5  -145.9    20.7
1891.5  -147.6    20.7
1892.5  -144.4    20.7
1893.5  -139.7    20.3
1894.5  -149.4    21.6
1895.5  -137.6    21.6
1896.5  -145.2    21.2
1897.5  -140.0    20.8
1898.5  -130.6    19.7
1899.5  -123.1    19.4
1900.5  -128.5    18.3
1901.5  -128.9    17.6
1902.5  -124.3    17.3
1903.5  -116.3    17.0
1904.5  -126.6    16.9
1905.5  -132.1    15.4
1906.5  -125.3    14.7
1907.5  -126.7    14.9
1908.5  -129.2    14.5
1909.5  -124.7    14.6
1910.5  -124.8    14.6
1911.5  -116.5    14.2
1912.5  -119.6    14.2
1913.5  -117.8    14.1
1914.5  -111.5    13.8
1915.5  -103.6    13.6
1916.5  -105.5    13.0
1917.5  -110.0    12.8
1918.5  -111.6    12.7
1919.5  -110.0    12.7
1920.5  -108.7    13.0
1921.5  -106.6    13.1
1922.5  -107.5    13.2
1923.5  -106.3    13.0
1924.5  -113.6    13.1
1925.5  -111.6    13.6
1926.5  -105.1    13.7
1927.5  -106.2    12.9
1928.5  -110.1    12.3
1929.5  -108.7    12.1
1930.5  -104.7    12.0
1931.5  -105.1    12.2
1932.5   -99.4    11.9
1933.5   -95.1    11.8
1934.5  -100.5    11.9
1935.5   -94.9    11.9
1936.5   -98.8    11.8
1937.5   -93.1    11.8
1938.5   -90.5    11.8
1939.5   -85.3    12.2
1940.5   -90.6    11.1
1941.5   -78.4    10.8
1942.5   -78.4    10.8
1943.5   -78.4    10.8
1944.5   -84.8    10.7
1945.5   -82.0    10.7
1946.5   -74.5    10.6
1947.5   -71.4     9.6
1948.5   -66.6     9.3
1949.5   -67.9     8.4
1950.5   -65.7     7.9
1951.5   -56.2     7.8
1952.5   -58.8     7.7
1953.5   -54.4     7.5
1954.5   -57.3     7.3
1955.5   -56.4     7.1
1956.5   -61.5     7.0
1957.5   -48.1     6.9
1958.5   -46.7     6.6
1959.5   -46.4     6.5
1960.5   -42.7     6.6
1961.5   -36.5     6.6
1962.5   -41.7     6.6
1963.5   -43.3     6.6
1964.5   -51.2     6.7
1965.5   -40.0     6.7
1966.5   -45.4     6.6
1967.5   -44.0     6.5
1968.5   -43.2     6.7
1969.5   -36.4     7.0
1970.5   -38.3     7.0
1971.5   -33.1     6.9
1972.5   -24.0     6.9
1973.5   -30.0     6.8
1974.5   -18.1     6.8
1975.5   -19.7     6.7
1976.5   -20.7     6.8
1977.5   -22.4     6.6
1978.5   -16.0     6.7
1979.5   -20.9     6.7
1980.5   -14.9     6.5
1981.5    -2.5     6.5
1982.5    -8.3     6.3
1983.5     0.1     6.5
1984.5    -0.8     6.3
1985.5   -11.1     6.3
1986.5   -10.5     6.3
1987.5    -9.9     6.2
1988.5    -5.2     6.3
1989.5    -0.7     6.4
1990.5     0.7     6.3
1991.5     3.8     6.3
1992.5     6.6     6.4
1993.5     2.1     6.4
1994.5     5.5     6.4
1995.5    10.7     6.4
1996.5    14.4     6.4
1997.5    22.6     6.5
1998.5    15.0     6.6
1999.5    21.7     6.7
2000.5    22.6     6.6
2001.5    27.1     6.5
2002.5    26.1     6.7
2003.5    35.1     6.9
2004.5    34.5     7.2
2005.5    34.1     7.3
2006.5    35.6     7.4
2007.5    39.1     8.0
2008.5    49.0     8.4
2009.5    55.5     8.8
