year,IPC2
1850,7.53e-09
1851,7.53e-09
1852,7.53e-09
1853,7.53e-09
1854,7.53e-09
1855,7.53e-09
1856,7.53e-09
1857,7.53e-09
1858,7.53e-09
1859,7.53e-09
1860,7.53e-09
1861,7.53e-09
1862,7.53e-09
1863,7.53e-09
1864,7.53e-09
1865,7.53e-09
1866,7.54e-09
1867,7.54e-09
1868,7.54e-09
1869,7.54e-09
1870,7.54e-09
1871,7.54e-09
1872,7.54e-09
1873,7.54e-09
1874,7.54e-09
1875,7.54e-09
1876,7.54e-09
1877,7.54e-09
1878,7.54e-09
1879,7.54e-09
1880,7.54e-09
1881,7.54e-09
1882,7.54e-09
1883,7.54e-09
1884,7.54e-09
1885,7.54e-09
1886,7.54e-09
1887,7.54e-09
1888,7.54e-09
1889,7.54e-09
1890,7.55e-09
1891,8.63e-09
1892,1.1600000000000001e-08
1893,1.62e-08
1894,2.19e-08
1895,2.84e-08
1896,3.53e-08
1897,4.22e-08
1898,4.89e-08
1899,5.4799999999999994e-08
1900,5.96e-08
1901,6.36e-08
1902,6.719999999999999e-08
1903,7.06e-08
1904,7.38e-08
1905,7.69e-08
1906,8e-08
1907,8.32e-08
1908,8.67e-08
1909,9.04e-08
1910,9.46e-08
1911,9.91e-08
1912,1.0399999999999999e-07
1913,1.0900000000000001e-07
1914,1.14e-07
1915,1.2000000000000002e-07
1916,1.26e-07
1917,1.3200000000000002e-07
1918,1.39e-07
1919,1.46e-07
1920,1.53e-07
1921,1.85e-07
1922,2.63e-07
1923,3.76e-07
1924,5.17e-07
1925,6.76e-07
1926,8.459999999999999e-07
1927,1.02e-06
1928,1.1800000000000001e-06
1929,1.33e-06
1930,1.4499999999999999e-06
1931,1.5599999999999999e-06
1932,1.66e-06
1933,1.76e-06
1934,1.85e-06
1935,1.95e-06
1936,2.04e-06
1937,2.13e-06
1938,2.2300000000000002e-06
1939,2.32e-06
1940,2.4199999999999997e-06
1941,2.52e-06
1942,2.63e-06
1943,2.74e-06
1944,2.8500000000000002e-06
1945,2.97e-06
1946,3.1e-06
1947,3.24e-06
1948,3.3800000000000002e-06
1949,3.53e-06
1950,3.7e-06
1951,3.87e-06
1952,4.07e-06
1953,4.28e-06
1954,4.499999999999999e-06
1955,4.74e-06
1956,4.98e-06
1957,5.24e-06
1958,5.5e-06
1959,5.7800000000000006e-06
1960,6.05e-06
1961,6.349999999999999e-06
1962,6.7e-06
1963,7.07e-06
1964,7.46e-06
1965,7.860000000000001e-06
1966,8.25e-06
1967,8.619999999999999e-06
1968,8.959999999999999e-06
1969,9.25e-06
1970,9.289999999999999e-06
1971,0.00102
1972,0.0020299999999999997
1973,0.005030000000000001
1974,0.00756
1975,0.00968
1976,0.0136
1977,0.0146
1978,0.0195
1979,0.0263
1980,0.032100000000000004
1981,0.033100000000000004
1982,0.0347
1983,0.0439
1984,0.06420000000000001
1985,0.053399999999999996
1986,0.06620000000000001
1987,0.0819
1988,0.114
1989,0.122
1990,0.124
1991,0.127
1992,0.13
1993,0.166
1994,0.187
1995,0.235
1996,0.268
1997,0.304
1998,0.338
1999,0.442
2000,0.421
2001,0.736
2002,0.777
2003,0.832
2004,0.757
2005,0.766
2006,0.899
2007,0.952
2008,1.0
2009,0.682
2010,0.703
2011,0.683
2012,0.662
2013,0.881
2014,0.902
2015,0.923
2016,0.945
2017,0.966
2018,0.987