year,IPC2
1850,3.84e-05
1851,3.84e-05
1852,3.84e-05
1853,3.84e-05
1854,3.84e-05
1855,3.84e-05
1856,3.84e-05
1857,3.84e-05
1858,3.84e-05
1859,3.84e-05
1860,3.84e-05
1861,3.84e-05
1862,3.84e-05
1863,3.84e-05
1864,3.84e-05
1865,3.84e-05
1866,3.84e-05
1867,3.84e-05
1868,3.84e-05
1869,3.84e-05
1870,3.84e-05
1871,3.84e-05
1872,3.84e-05
1873,3.84e-05
1874,3.84e-05
1875,3.84e-05
1876,3.84e-05
1877,3.84e-05
1878,3.84e-05
1879,3.84e-05
1880,3.84e-05
1881,3.84e-05
1882,3.84e-05
1883,3.84e-05
1884,3.84e-05
1885,3.84e-05
1886,3.84e-05
1887,3.84e-05
1888,3.84e-05
1889,3.84e-05
1890,3.84e-05
1891,4.39e-05
1892,5.92e-05
1893,8.23e-05
1894,0.000111
1895,0.00014399999999999998
1896,0.00017999999999999998
1897,0.000215
1898,0.000249
1899,0.000279
1900,0.000304
1901,0.000324
1902,0.000342
1903,0.000359
1904,0.000376
1905,0.000391
1906,0.00040699999999999997
1907,0.000424
1908,0.000441
1909,0.00046
1910,0.000482
1911,0.000505
1912,0.0005290000000000001
1913,0.000555
1914,0.0005819999999999999
1915,0.000611
1916,0.000642
1917,0.000674
1918,0.000707
1919,0.000742
1920,0.0007790000000000001
1921,0.000944
1922,0.00134
1923,0.00191
1924,0.00263
1925,0.00344
1926,0.00431
1927,0.00518
1928,0.006019999999999999
1929,0.00677
1930,0.0074
1931,0.007940000000000001
1932,0.00846
1933,0.008960000000000001
1934,0.009439999999999999
1935,0.00992
1936,0.0104
1937,0.0109
1938,0.011300000000000001
1939,0.011800000000000001
1940,0.0123
1941,0.0129
1942,0.0134
1943,0.014
1944,0.0145
1945,0.0152
1946,0.0158
1947,0.0165
1948,0.0172
1949,0.018
1950,0.0188
1951,0.0197
1952,0.0207
1953,0.0218
1954,0.0229
1955,0.0241
1956,0.0254
1957,0.026699999999999998
1958,0.028
1959,0.0294
1960,0.0308
1961,0.0324
1962,0.0341
1963,0.036
1964,0.038
1965,0.04
1966,0.042
1967,0.0439
1968,0.0456
1969,0.0471
1970,0.0465
1971,0.124
1972,0.0709
1973,0.0883
1974,0.143
1975,0.163
1976,0.192
1977,0.124
1978,0.125
1979,0.163
1980,0.157
1981,0.167
1982,0.229
1983,0.205
1984,0.23
1985,0.246
1986,0.201
1987,0.231
1988,0.185
1989,0.187
1990,0.179
1991,0.111
1992,0.11
1993,0.111
1994,0.11
1995,0.11
1996,0.11
1997,0.11
1998,0.11
1999,0.111
2000,0.112
2001,0.111
2002,0.116
2003,0.12
2004,0.121
2005,0.122
2006,0.116
2007,0.0859
2008,0.0127
2009,0.0045
2010,0.00828
2011,0.0173
2012,0.0156
2013,0.0132
2014,0.013099999999999999
2015,0.0135
2016,0.017
2017,0.015
2018,0.0134