year,IPC2
1850,8.68e-09
1851,8.68e-09
1852,8.68e-09
1853,8.68e-09
1854,8.68e-09
1855,8.68e-09
1856,8.68e-09
1857,8.68e-09
1858,8.68e-09
1859,8.68e-09
1860,8.68e-09
1861,8.68e-09
1862,8.69e-09
1863,8.69e-09
1864,8.69e-09
1865,8.69e-09
1866,8.69e-09
1867,8.69e-09
1868,8.69e-09
1869,8.69e-09
1870,8.69e-09
1871,8.69e-09
1872,8.69e-09
1873,8.69e-09
1874,8.69e-09
1875,8.69e-09
1876,8.69e-09
1877,8.69e-09
1878,8.69e-09
1879,8.69e-09
1880,8.69e-09
1881,8.69e-09
1882,8.69e-09
1883,8.69e-09
1884,8.7e-09
1885,8.7e-09
1886,8.7e-09
1887,8.7e-09
1888,8.7e-09
1889,8.7e-09
1890,8.7e-09
1891,1.02e-08
1892,1.42e-08
1893,2.03e-08
1894,2.8e-08
1895,3.67e-08
1896,4.6e-08
1897,5.54e-08
1898,6.43e-08
1899,7.229999999999999e-08
1900,7.88e-08
1901,8.409999999999999e-08
1902,8.899999999999999e-08
1903,9.35e-08
1904,9.78e-08
1905,1.02e-07
1906,1.06e-07
1907,1.1e-07
1908,1.15e-07
1909,1.2000000000000002e-07
1910,1.26e-07
1911,1.3200000000000002e-07
1912,1.38e-07
1913,1.45e-07
1914,1.52e-07
1915,1.6e-07
1916,1.68e-07
1917,1.7699999999999998e-07
1918,1.85e-07
1919,1.9499999999999999e-07
1920,2.04e-07
1921,2.43e-07
1922,3.34e-07
1923,4.66e-07
1924,6.3e-07
1925,8.16e-07
1926,1.01e-06
1927,1.2099999999999998e-06
1928,1.4e-06
1929,1.5800000000000001e-06
1930,1.72e-06
1931,1.85e-06
1932,1.9699999999999998e-06
1933,2.09e-06
1934,2.2e-06
1935,2.31e-06
1936,2.4199999999999997e-06
1937,2.5300000000000003e-06
1938,2.64e-06
1939,2.76e-06
1940,2.87e-06
1941,8.29e-06
1942,2.3199999999999998e-05
1943,4.5900000000000004e-05
1944,7.47e-05
1945,0.000108
1946,0.00014399999999999998
1947,0.00018099999999999998
1948,0.00021799999999999999
1949,0.000253
1950,0.000283
1951,0.000311
1952,0.00034
1953,0.000368
1954,0.00039600000000000003
1955,0.000424
1956,0.000453
1957,0.000481
1958,0.000509
1959,0.0005380000000000001
1960,0.000566
1961,0.000592
1962,0.000616
1963,0.000637
1964,0.0006580000000000001
1965,0.00068
1966,0.000705
1967,0.000733
1968,0.0007650000000000001
1969,0.000804
1970,0.000756
1971,0.00109
1972,0.00108
1973,0.0014299999999999998
1974,0.00106
1975,0.00175
1976,0.0024
1977,0.00296
1978,0.00372
1979,0.00478
1980,0.00507
1981,0.00508
1982,0.00528
1983,0.00528
1984,0.00451
1985,0.0055
1986,0.00758
1987,0.00901
1988,0.01
1989,0.011300000000000001
1990,0.014
1991,0.015300000000000001
1992,0.019
1993,0.0332
1994,0.061799999999999994
1995,0.12
1996,0.147
1997,0.208
1998,0.277
1999,0.361
2000,0.443
2001,0.551
2002,0.685
2003,0.821
2004,0.939
2005,1.11
2006,1.29
2007,1.52
2008,1.77
2009,1.96
2010,2.15
2011,2.32
2012,2.48
2013,2.66
2014,2.79
2015,2.95
2016,3.1
2017,3.31
2018,3.45