year,IPC2
1850,5.43e-05
1851,5.43e-05
1852,5.43e-05
1853,5.43e-05
1854,5.43e-05
1855,5.43e-05
1856,5.43e-05
1857,5.43e-05
1858,5.43e-05
1859,5.43e-05
1860,5.43e-05
1861,5.43e-05
1862,5.43e-05
1863,5.43e-05
1864,5.43e-05
1865,5.43e-05
1866,5.43e-05
1867,5.43e-05
1868,5.43e-05
1869,5.43e-05
1870,5.43e-05
1871,5.43e-05
1872,5.43e-05
1873,5.43e-05
1874,5.43e-05
1875,5.43e-05
1876,5.43e-05
1877,5.43e-05
1878,5.43e-05
1879,5.43e-05
1880,5.43e-05
1881,5.43e-05
1882,5.43e-05
1883,5.43e-05
1884,5.43e-05
1885,5.43e-05
1886,5.4399999999999994e-05
1887,5.4399999999999994e-05
1888,5.4399999999999994e-05
1889,5.4399999999999994e-05
1890,5.4399999999999994e-05
1891,6.35e-05
1892,8.87e-05
1893,0.000127
1894,0.000175
1895,0.000229
1896,0.00028799999999999995
1897,0.00034599999999999995
1898,0.000402
1899,0.00045200000000000004
1900,0.000492
1901,0.000526
1902,0.0005560000000000001
1903,0.000584
1904,0.000611
1905,0.000637
1906,0.0006630000000000001
1907,0.000691
1908,0.000719
1909,0.000751
1910,0.000786
1911,0.000824
1912,0.000864
1913,0.000907
1914,0.0009519999999999999
1915,0.001
1916,0.0010500000000000002
1917,0.0011
1918,0.00116
1919,0.00122
1920,0.00128
1921,0.00152
1922,0.00209
1923,0.0029100000000000003
1924,0.00394
1925,0.0050999999999999995
1926,0.00633
1927,0.00758
1928,0.00878
1929,0.009859999999999999
1930,0.0108
1931,0.0115
1932,0.0123
1933,0.013
1934,0.013699999999999999
1935,0.0144
1936,0.015099999999999999
1937,0.0158
1938,0.0165
1939,0.0172
1940,0.0179
1941,0.018699999999999998
1942,0.0195
1943,0.020300000000000002
1944,0.0211
1945,0.022
1946,0.023
1947,0.024
1948,0.025
1949,0.026199999999999998
1950,0.027399999999999997
1951,0.0287
1952,0.030199999999999998
1953,0.0317
1954,0.0334
1955,0.0351
1956,0.036899999999999995
1957,0.038799999999999994
1958,0.040799999999999996
1959,0.0428
1960,0.0448
1961,0.0471
1962,0.0496
1963,0.052399999999999995
1964,0.055299999999999995
1965,0.0582
1966,0.0611
1967,0.0638
1968,0.0663
1969,0.0692
1970,0.0933
1971,0.246
1972,0.142
1973,0.176
1974,0.284
1975,0.325
1976,0.381
1977,0.247
1978,0.249
1979,0.324
1980,0.313
1981,0.334
1982,0.455
1983,0.408
1984,0.458
1985,0.49
1986,0.527
1987,0.905
1988,0.784
1989,0.886
1990,0.903
1991,0.75
1992,0.671
1993,0.626
1994,0.557
1995,0.395
1996,0.385
1997,0.358
1998,0.393
1999,0.382
2000,0.375
2001,0.338
2002,0.334
2003,0.4
2004,0.468
2005,0.543
2006,0.575
2007,0.62
2008,0.67
2009,0.639
2010,0.693
2011,0.703
2012,0.757
2013,0.801
2014,0.842
2015,0.868
2016,0.897
2017,0.861
2018,0.746