year,IPC2
1850,2.95e-09
1851,2.95e-09
1852,2.95e-09
1853,2.95e-09
1854,2.95e-09
1855,2.95e-09
1856,2.95e-09
1857,2.95e-09
1858,2.95e-09
1859,2.95e-09
1860,2.95e-09
1861,2.95e-09
1862,2.95e-09
1863,2.95e-09
1864,2.95e-09
1865,2.96e-09
1866,2.96e-09
1867,2.96e-09
1868,2.96e-09
1869,2.96e-09
1870,2.96e-09
1871,2.96e-09
1872,2.96e-09
1873,2.96e-09
1874,2.96e-09
1875,2.96e-09
1876,2.96e-09
1877,2.96e-09
1878,2.96e-09
1879,2.96e-09
1880,2.96e-09
1881,2.96e-09
1882,2.96e-09
1883,2.96e-09
1884,2.96e-09
1885,2.96e-09
1886,2.96e-09
1887,2.96e-09
1888,2.96e-09
1889,2.96e-09
1890,2.96e-09
1891,3.38e-09
1892,4.560000000000001e-09
1893,6.34e-09
1894,8.58e-09
1895,1.11e-08
1896,1.38e-08
1897,1.66e-08
1898,1.92e-08
1899,2.15e-08
1900,2.34e-08
1901,2.5000000000000002e-08
1902,2.64e-08
1903,2.77e-08
1904,2.89e-08
1905,3.01e-08
1906,3.1399999999999997e-08
1907,3.26e-08
1908,3.4e-08
1909,3.55e-08
1910,3.71e-08
1911,3.89e-08
1912,4.07e-08
1913,4.27e-08
1914,4.49e-08
1915,4.71e-08
1916,4.94e-08
1917,5.19e-08
1918,5.4500000000000005e-08
1919,5.72e-08
1920,6.000000000000001e-08
1921,7.270000000000001e-08
1922,1.03e-07
1923,1.47e-07
1924,2.03e-07
1925,2.65e-07
1926,3.32e-07
1927,3.99e-07
1928,4.63e-07
1929,5.21e-07
1930,5.699999999999999e-07
1931,6.12e-07
1932,6.51e-07
1933,6.9e-07
1934,7.27e-07
1935,7.64e-07
1936,8.000000000000001e-07
1937,8.37e-07
1938,8.74e-07
1939,9.11e-07
1940,9.5e-07
1941,9.9e-07
1942,1.03e-06
1943,1.07e-06
1944,1.1199999999999999e-06
1945,1.17e-06
1946,1.22e-06
1947,1.2700000000000001e-06
1948,1.33e-06
1949,1.39e-06
1950,1.4499999999999999e-06
1951,1.52e-06
1952,1.6000000000000001e-06
1953,1.68e-06
1954,1.77e-06
1955,1.8600000000000002e-06
1956,1.96e-06
1957,2.06e-06
1958,2.16e-06
1959,2.27e-06
1960,2.37e-06
1961,2.49e-06
1962,2.63e-06
1963,2.7699999999999997e-06
1964,2.93e-06
1965,3.0799999999999997e-06
1966,3.24e-06
1967,3.3800000000000002e-06
1968,3.5100000000000003e-06
1969,3.63e-06
1970,3.64e-06
1971,4.04e-06
1972,8.08e-06
1973,1.21e-05
1974,0.00744
1975,0.233
1976,0.457
1977,0.53
1978,0.525
1979,1.25
1980,1.41
1981,1.42
1982,1.5
1983,1.44
1984,1.47
1985,1.49
1986,1.57
1987,1.63
1988,1.64
1989,1.72
1990,1.73
1991,1.72
1992,0.221
1993,0.185
1994,0.126
1995,0.125
1996,0.118
1997,0.11
1998,0.103
1999,0.104
2000,0.122
2001,0.102
2002,0.0998
2003,0.101
2004,0.101
2005,0.101
2006,0.101
2007,0.101
2008,0.127
2009,0.133
2010,0.134
2011,0.133
2012,0.131
2013,0.14
2014,0.142
2015,0.138
2016,0.136
2017,0.15
2018,0.153