year,value
1893,2.1003
1894,3.1699998
1895,1.2601
1896,1.8102999
1897,1.8805
1898,2.0706
1899,0.4004
1900,3.1804998
1901,1.6604002
1902,2.2705
1903,2.9512005
1904,0.93000007
1905,2.1002002
1906,2.7001996
1907,2.0403
1908,2.9310997
1909,3.8305993
1910,6.9406
1911,3.0414
1912,4.8712
1913,2.531
1914,2.8405
1915,5.4001
1916,2.8402998
1917,1.9204999
1918,1.971
1919,3.5901997
1920,3.5704994
1921,2.4004993
1922,1.9200001
1923,1.2410002
1924,2.2806997
1925,2.0313
1926,2.3916
1927,2.5201998
1928,2.8908002
1929,4.921299
1930,2.25
1931,1.1499999
1932,6.1215024
1933,3.8121996
1934,2.8511987
1935,4.642202
1936,3.6013987
1937,4.9214
1938,2.1325998
1939,4.1018
1940,3.3823993
1941,3.481899
1942,4.7313004
1943,2.0716999
1944,4.0308995
1945,3.372299
1946,4.3606997
1947,1.5317001
1948,3.2113988
1949,5.022299
1950,3.071199
1951,3.1518996
1952,2.6814992
1953,3.0717998
1954,2.2313
1955,2.1621
1956,1.0722003
1957,1.3713999
1958,1.6118001
1959,2.2414
1960,3.7917995
1961,3.261199
1962,3.361899
1963,1.4425998
1964,1.3315
1965,3.0115986
1966,3.2215989
1967,1.7521001
1968,1.0314002
1969,3.5915997
1970,0.9421002
1971,5.961301
1972,2.5714996
1973,5.7011003
1974,3.3419
1975,3.141699
1976,3.5414987
1977,0.64149994
1978,1.5522001
1979,2.0318
1980,1.7016002
1981,0.88249993
1982,3.0513997
1983,6.891201
1984,1.6714
1985,2.9812987
1986,2.3517997
1987,1.5214001
1988,2.0110998
1989,2.191
1990,1.2819
1991,2.8115983
1992,4.4112
1993,3.4910996
1994,1.8619002
1995,1.3915
1996,2.8419983
1997,3.182499
1998,3.9024978
1999,2.1022992
2000,2.7314
2001,4.782199
2002,1.9714999
2003,1.2013
2004,3.9710991
2005,3.1621988
2006,2.0616996
2007,6.0815
2008,4.8118
2009,3.1018991
2010,5.4438996
2011,2.8989995
2012,4.031
2013,3.4799995
2014,2.7119985
2015,3.2030005
2016,8.181801
2017,4.831301
2018,3.2617989
2019,5.8604994
2020,3.3899996
2021,2.8699996
2022,2.0900002
2023,6.8900003
2024,3.2705998
2025,1.7220001