year,IPC2
1850,4.77e-05
1851,4.77e-05
1852,4.77e-05
1853,4.77e-05
1854,4.77e-05
1855,4.77e-05
1856,4.77e-05
1857,4.77e-05
1858,4.77e-05
1859,4.77e-05
1860,4.77e-05
1861,4.77e-05
1862,4.77e-05
1863,4.78e-05
1864,4.78e-05
1865,4.78e-05
1866,4.78e-05
1867,4.78e-05
1868,4.78e-05
1869,4.78e-05
1870,4.78e-05
1871,4.78e-05
1872,4.78e-05
1873,4.78e-05
1874,4.78e-05
1875,4.78e-05
1876,4.78e-05
1877,4.78e-05
1878,4.78e-05
1879,4.78e-05
1880,4.78e-05
1881,4.78e-05
1882,4.78e-05
1883,4.78e-05
1884,4.78e-05
1885,4.78e-05
1886,4.78e-05
1887,4.78e-05
1888,4.78e-05
1889,4.78e-05
1890,4.78e-05
1891,5.47e-05
1892,7.37e-05
1893,0.000102
1894,0.00013900000000000002
1895,0.00017999999999999998
1896,0.000224
1897,0.000268
1898,0.00031
1899,0.000347
1900,0.000378
1901,0.00040300000000000004
1902,0.000426
1903,0.000447
1904,0.00046800000000000005
1905,0.00048699999999999997
1906,0.000507
1907,0.000528
1908,0.000549
1909,0.0005729999999999999
1910,0.0005989999999999999
1911,0.000628
1912,0.0006590000000000001
1913,0.000691
1914,0.000725
1915,0.000761
1916,0.000799
1917,0.000839
1918,0.00088
1919,0.000924
1920,0.000969
1921,0.0011799999999999998
1922,0.0016699999999999998
1923,0.0023799999999999997
1924,0.00328
1925,0.00429
1926,0.00536
1927,0.00645
1928,0.00749
1929,0.00843
1930,0.009210000000000001
1931,0.009890000000000001
1932,0.0105
1933,0.0112
1934,0.011800000000000001
1935,0.0123
1936,0.0129
1937,0.0135
1938,0.0141
1939,0.0147
1940,0.0154
1941,0.016
1942,0.0167
1943,0.0174
1944,0.0181
1945,0.0189
1946,0.0197
1947,0.0205
1948,0.0214
1949,0.0224
1950,0.023399999999999997
1951,0.0246
1952,0.0258
1953,0.027100000000000003
1954,0.0285
1955,0.03
1956,0.0316
1957,0.0332
1958,0.0349
1959,0.0366
1960,0.0384
1961,0.040299999999999996
1962,0.0425
1963,0.0448
1964,0.047299999999999995
1965,0.0498
1966,0.0523
1967,0.054700000000000006
1968,0.056799999999999996
1969,0.0592
1970,0.08009999999999999
1971,0.213
1972,0.122
1973,0.152
1974,0.246
1975,0.281
1976,0.331
1977,0.213
1978,0.215
1979,0.281
1980,0.271
1981,0.289
1982,0.394
1983,0.353
1984,0.397
1985,0.424
1986,0.457
1987,0.785
1988,0.666
1989,0.753
1990,0.767
1991,0.632
1992,0.565
1993,0.523
1994,0.458
1995,0.307
1996,0.282
1997,0.244
1998,0.252
1999,0.213
2000,0.177
2001,0.113
2002,0.0713
2003,0.0882
2004,0.09670000000000001
2005,0.11
2006,0.09440000000000001
2007,0.0891
2008,0.0884
2009,0.0346
2010,0.0596
2011,0.0435
2012,0.0391
2013,0.033
2014,0.032799999999999996
2015,0.0339
2016,0.0427
2017,0.0376
2018,0.033600000000000005