year,IPC2
1850,1.16e-06
1851,1.16e-06
1852,1.16e-06
1853,1.16e-06
1854,1.16e-06
1855,1.16e-06
1856,1.16e-06
1857,1.16e-06
1858,1.16e-06
1859,1.16e-06
1860,1.16e-06
1861,1.16e-06
1862,1.16e-06
1863,1.16e-06
1864,1.16e-06
1865,1.16e-06
1866,1.17e-06
1867,1.17e-06
1868,1.17e-06
1869,1.17e-06
1870,1.17e-06
1871,1.17e-06
1872,1.17e-06
1873,1.17e-06
1874,1.17e-06
1875,1.17e-06
1876,1.17e-06
1877,1.17e-06
1878,1.17e-06
1879,1.17e-06
1880,1.17e-06
1881,1.17e-06
1882,1.17e-06
1883,1.17e-06
1884,1.17e-06
1885,1.17e-06
1886,1.17e-06
1887,1.17e-06
1888,1.17e-06
1889,1.17e-06
1890,1.17e-06
1891,1.33e-06
1892,1.8e-06
1893,2.5e-06
1894,3.3800000000000002e-06
1895,4.3899999999999995e-06
1896,5.459999999999999e-06
1897,6.53e-06
1898,7.56e-06
1899,8.47e-06
1900,9.220000000000002e-06
1901,9.839999999999999e-06
1902,1.0399999999999999e-05
1903,1.09e-05
1904,1.1400000000000001e-05
1905,1.1900000000000001e-05
1906,1.24e-05
1907,1.29e-05
1908,1.34e-05
1909,1.4e-05
1910,1.46e-05
1911,1.53e-05
1912,1.61e-05
1913,1.6899999999999997e-05
1914,1.77e-05
1915,1.8599999999999998e-05
1916,1.95e-05
1917,2.05e-05
1918,2.1499999999999997e-05
1919,2.2499999999999998e-05
1920,2.36e-05
1921,2.87e-05
1922,4.06e-05
1923,5.8099999999999996e-05
1924,7.99e-05
1925,0.00010499999999999999
1926,0.000131
1927,0.000157
1928,0.000183
1929,0.000206
1930,0.000225
1931,0.000241
1932,0.000257
1933,0.000272
1934,0.000287
1935,0.000301
1936,0.000315
1937,0.00033
1938,0.00034399999999999996
1939,0.000359
1940,0.000375
1941,0.000391
1942,0.00041
1943,0.00043
1944,0.00045200000000000004
1945,0.00047599999999999997
1946,0.000501
1947,0.000528
1948,0.0005560000000000001
1949,0.000584
1950,0.000614
1951,0.000646
1952,0.00068
1953,0.000717
1954,0.000756
1955,0.0007970000000000001
1956,0.000839
1957,0.000883
1958,0.000928
1959,0.0009739999999999999
1960,0.00102
1961,0.00107
1962,0.00113
1963,0.0011899999999999999
1964,0.00125
1965,0.00132
1966,0.00138
1967,0.0014399999999999999
1968,0.0015
1969,0.00151
1970,0.00155
1971,0.0016699999999999998
1972,0.00151
1973,0.00166
1974,0.00164
1975,0.0016699999999999998
1976,0.00184
1977,0.00202
1978,0.00219
1979,0.0025499999999999997
1980,0.0027
1981,0.0025800000000000003
1982,0.00256
1983,0.0025
1984,0.00273
1985,0.00268
1986,0.0029500000000000004
1987,0.0029
1988,0.00282
1989,0.0029
1990,0.00373
1991,0.0033
1992,0.00277
1993,0.00242
1994,0.00234
1995,0.0025
1996,0.00259
1997,0.0031
1998,0.0038799999999999998
1999,0.00468
2000,0.00564
2001,0.0064
2002,0.00728
2003,0.00793
2004,0.00859
2005,0.009269999999999999
2006,0.0104
2007,0.0111
2008,0.0119
2009,0.0123
2010,0.0126
2011,0.0121
2012,0.0115
2013,0.0248
2014,0.020399999999999998
2015,0.0143
2016,0.0126
2017,0.015
2018,0.0159