year,IPC2
1850,5.96e-05
1851,5.96e-05
1852,5.96e-05
1853,5.96e-05
1854,5.96e-05
1855,5.96e-05
1856,5.96e-05
1857,5.96e-05
1858,5.96e-05
1859,5.96e-05
1860,5.96e-05
1861,5.96e-05
1862,5.96e-05
1863,5.96e-05
1864,5.97e-05
1865,5.97e-05
1866,5.97e-05
1867,5.97e-05
1868,5.97e-05
1869,5.97e-05
1870,5.97e-05
1871,5.97e-05
1872,5.97e-05
1873,5.97e-05
1874,5.97e-05
1875,5.97e-05
1876,5.97e-05
1877,5.97e-05
1878,5.97e-05
1879,5.97e-05
1880,5.97e-05
1881,5.97e-05
1882,5.97e-05
1883,5.97e-05
1884,5.97e-05
1885,5.97e-05
1886,5.97e-05
1887,5.97e-05
1888,5.97e-05
1889,5.97e-05
1890,5.97e-05
1891,6.98e-05
1892,9.74e-05
1893,0.00013900000000000002
1894,0.000192
1895,0.000252
1896,0.000316
1897,0.00038
1898,0.000441
1899,0.000496
1900,0.000541
1901,0.000578
1902,0.000611
1903,0.000642
1904,0.000671
1905,0.0007
1906,0.0007289999999999999
1907,0.000759
1908,0.000791
1909,0.000825
1910,0.0008629999999999999
1911,0.000905
1912,0.000949
1913,0.000997
1914,0.0010500000000000002
1915,0.0011
1916,0.00115
1917,0.00121
1918,0.00127
1919,0.00134
1920,0.0014
1921,0.0016699999999999998
1922,0.00229
1923,0.0032
1924,0.00433
1925,0.0056
1926,0.00696
1927,0.00833
1928,0.009640000000000001
1929,0.0108
1930,0.011800000000000001
1931,0.0127
1932,0.0135
1933,0.0143
1934,0.015099999999999999
1935,0.0159
1936,0.0166
1937,0.0174
1938,0.0182
1939,0.0189
1940,0.0197
1941,0.0205
1942,0.0214
1943,0.0222
1944,0.023100000000000002
1945,0.024
1946,0.025
1947,0.0261
1948,0.0272
1949,0.028399999999999998
1950,0.0297
1951,0.031100000000000003
1952,0.0327
1953,0.0343
1954,0.0361
1955,0.038
1956,0.04
1957,0.042
1958,0.0441
1959,0.046299999999999994
1960,0.0485
1961,0.0509
1962,0.053700000000000005
1963,0.0567
1964,0.0598
1965,0.063
1966,0.06609999999999999
1967,0.0691
1968,0.0718
1969,0.072
1970,8.780000000000001e-11
1971,0.199
1972,0.284
1973,0.255
1974,0.328
1975,0.319
1976,0.326
1977,0.329
1978,0.345
1979,0.374
1980,0.388
1981,0.483
1982,0.575
1983,0.762
1984,0.806
1985,0.818
1986,0.836
1987,0.843
1988,0.838
1989,0.826
1990,0.842
1991,0.714
1992,0.664
1993,0.598
1994,0.533
1995,0.562
1996,0.963
1997,1.07
1998,1.09
1999,1.12
2000,1.0
2001,1.01
2002,1.07
2003,1.33
2004,1.49
2005,1.55
2006,1.67
2007,1.73
2008,1.72
2009,1.79
2010,1.44
2011,2.5
2012,4.47
2013,3.72
2014,3.24
2015,3.42
2016,3.59
2017,3.76
2018,3.94