year,value
1893,2.1003
1894,3.1699998
1895,1.2601
1896,1.8103
1897,1.8805
1898,2.0705998
1899,0.4004
1900,3.1804993
1901,1.6604002
1902,2.2705002
1903,2.9511993
1904,0.92999995
1905,2.1002002
1906,2.7001998
1907,2.0403
1908,2.9310997
1909,3.8305993
1910,6.940601
1911,3.0414
1912,4.8711987
1913,2.5309994
1914,2.8404999
1915,5.4001
1916,2.8402998
1917,1.9204999
1918,1.9710002
1919,3.5901995
1920,3.5704994
1921,2.4004993
1922,1.9199998
1923,1.241
1924,2.2807
1925,2.0313
1926,2.3916
1927,2.5201998
1928,2.8908002
1929,4.921299
1930,2.25
1931,1.1499999
1932,6.1215024
1933,3.8121977
1934,2.8511996
1935,4.642199
1936,3.6013992
1937,4.9214
1938,2.1326
1939,4.1018
1940,3.3823993
1941,3.481899
1942,4.7313004
1943,2.0716999
1944,4.0308995
1945,3.3722997
1946,4.3606997
1947,1.5317
1948,3.2113984
1949,5.0223002
1950,3.0711992
1951,3.1519003
1952,2.6814995
1953,3.0717993
1954,2.2312994
1955,2.1620996
1956,1.0722
1957,1.3713999
1958,1.6118002
1959,2.2414
1960,3.7918
1961,3.2611992
1962,3.3618996
1963,1.4426001
1964,1.3315002
1965,3.0115995
1966,3.2215993
1967,1.7521001
1968,1.0314001
1969,3.591599
1970,0.9421
1971,5.9613004
1972,2.5715003
1973,5.7011003
1974,3.3419
1975,3.1417
1976,3.5414999
1977,0.64150006
1978,1.5521998
1979,2.0318003
1980,1.7016001
1981,0.8825002
1982,3.0513992
1983,6.891201
1984,1.6714001
1985,2.9812994
1986,2.351799
1987,1.5214003
1988,2.0110996
1989,2.1909997
1990,1.2818999
1991,2.811599
1992,4.4112
1993,3.4910989
1994,1.8619002
1995,1.3915
1996,2.8419995
1997,3.1824992
1998,3.9024982
1999,2.1023002
2000,2.7313993
2001,4.7821984
2002,1.9714999
2003,1.2013
2004,3.971099
2005,3.1621974
2006,2.0616996
2007,6.081502
2008,4.8117995
2009,3.1018994
2010,5.4438996
2011,2.8989997
2012,4.0309997
2013,3.479999
2014,2.7119992
2015,3.2029994
2016,8.181802
2017,4.8313
2018,3.261799
2019,5.8604994
2020,3.3899994
2021,2.87
2022,2.09
2023,6.8900013
2024,3.2705996
2025,1.7219999
2026,2.6712985