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
1941,0.00039
1942,0.00040699999999999997
1943,0.000424
1944,0.000441
1945,0.00046
1946,0.00047999999999999996
1947,0.000501
1948,0.000523
1949,0.000546
1950,0.0005719999999999999
1951,0.0005989999999999999
1952,0.000629
1953,0.000661
1954,0.000696
1955,0.000733
1956,0.000771
1957,0.0008100000000000001
1958,0.000851
1959,0.000893
1960,0.0009350000000000001
1961,0.000982
1962,0.0010400000000000001
1963,0.00109
1964,0.00115
1965,0.00122
1966,0.00128
1967,0.00133
1968,0.00139
1969,0.00136
1970,0.00133
1971,0.00138
1972,0.00125
1973,0.0012900000000000001
1974,0.00134
1975,0.00124
1976,0.00125
1977,0.00131
1978,0.00134
1979,0.0014299999999999998
1980,0.00151
1981,0.00146
1982,0.00135
1983,0.0013700000000000001
1984,0.0014299999999999998
1985,0.00132
1986,0.00151
1987,0.00139
1988,0.00138
1989,0.00138
1990,0.0014
1991,0.00122
1992,0.000751
1993,0.00047999999999999996
1994,0.000309
1995,0.000265
1996,0.00029299999999999997
1997,0.000314
1998,0.00035099999999999997
1999,0.000331
2000,0.000464
2001,0.000393
2002,0.00034
2003,0.000432
2004,0.00038
2005,0.000292
2006,0.000317
2007,0.000305
2008,0.000321
2009,0.000332
2010,0.000389
2011,0.00035
2012,0.00031800000000000003
2013,0.000347
2014,0.000241
2015,0.00022
2016,0.000152
2017,9.71e-05
2018,4.25e-05