year,IPC2
1850,3.69e-09
1851,3.69e-09
1852,3.69e-09
1853,3.69e-09
1854,3.69e-09
1855,3.69e-09
1856,3.69e-09
1857,3.69e-09
1858,3.69e-09
1859,3.69e-09
1860,3.69e-09
1861,3.69e-09
1862,3.69e-09
1863,3.69e-09
1864,3.69e-09
1865,3.69e-09
1866,3.69e-09
1867,3.69e-09
1868,3.69e-09
1869,3.69e-09
1870,3.69e-09
1871,3.69e-09
1872,3.69e-09
1873,3.69e-09
1874,3.69e-09
1875,3.69e-09
1876,3.69e-09
1877,3.69e-09
1878,3.69e-09
1879,3.69e-09
1880,3.69e-09
1881,3.69e-09
1882,3.69e-09
1883,3.69e-09
1884,3.69e-09
1885,3.69e-09
1886,3.69e-09
1887,3.69e-09
1888,3.69e-09
1889,3.7e-09
1890,3.7e-09
1891,4.31e-09
1892,6.03e-09
1893,8.62e-09
1894,1.1899999999999999e-08
1895,1.56e-08
1896,1.95e-08
1897,2.35e-08
1898,2.73e-08
1899,3.0700000000000004e-08
1900,3.35e-08
1901,3.57e-08
1902,3.7799999999999994e-08
1903,3.9700000000000005e-08
1904,4.15e-08
1905,4.3300000000000004e-08
1906,4.51e-08
1907,4.69e-08
1908,4.89e-08
1909,5.1e-08
1910,5.3399999999999995e-08
1911,5.6e-08
1912,5.8699999999999996e-08
1913,6.160000000000001e-08
1914,6.47e-08
1915,6.8e-08
1916,7.14e-08
1917,7.5e-08
1918,7.87e-08
1919,8.26e-08
1920,8.67e-08
1921,1.03e-07
1922,1.42e-07
1923,1.98e-07
1924,2.68e-07
1925,3.4699999999999997e-07
1926,4.3e-07
1927,5.15e-07
1928,5.96e-07
1929,6.7e-07
1930,7.32e-07
1931,7.85e-07
1932,8.36e-07
1933,8.86e-07
1934,9.340000000000001e-07
1935,9.82e-07
1936,1.03e-06
1937,1.08e-06
1938,1.1199999999999999e-06
1939,1.17e-06
1940,1.22e-06
1941,1.2700000000000001e-06
1942,1.32e-06
1943,1.37e-06
1944,1.43e-06
1945,1.49e-06
1946,1.55e-06
1947,1.61e-06
1948,1.68e-06
1949,1.76e-06
1950,1.84e-06
1951,1.9200000000000003e-06
1952,2.02e-06
1953,2.12e-06
1954,2.2300000000000002e-06
1955,2.35e-06
1956,2.47e-06
1957,2.5999999999999997e-06
1958,2.7299999999999997e-06
1959,2.86e-06
1960,3e-06
1961,3.15e-06
1962,3.32e-06
1963,3.5e-06
1964,3.7e-06
1965,3.9e-06
1966,4.09e-06
1967,4.270000000000001e-06
1968,4.440000000000001e-06
1969,4.59e-06
1970,4.610000000000001e-06
1971,5.14e-06
1972,1.03e-05
1973,1.54e-05
1974,0.00871
1975,0.273
1976,0.535
1977,0.619
1978,0.614
1979,1.46
1980,1.65
1981,1.66
1982,1.75
1983,1.69
1984,1.72
1985,1.74
1986,1.84
1987,1.9
1988,1.91
1989,2.01
1990,2.03
1991,2.01
1992,0.255
1993,0.213
1994,0.145
1995,0.144
1996,0.136
1997,0.128
1998,0.12
1999,0.12
2000,0.141
2001,0.119
2002,0.116
2003,0.117
2004,0.117
2005,0.117
2006,0.118
2007,0.117
2008,0.148
2009,0.154
2010,0.156
2011,0.155
2012,0.152
2013,0.162
2014,0.165
2015,0.16
2016,0.158
2017,0.174
2018,0.178