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
1921,0.000531
1922,0.00197
1923,0.0040999999999999995
1924,0.006679999999999999
1925,0.00948
1926,0.0123
1927,0.0149
1928,0.017
1929,0.0184
1930,0.019
1931,0.0185
1932,0.0174
1933,0.0157
1934,0.0136
1935,0.011300000000000001
1936,0.00903
1937,0.0069500000000000004
1938,0.00523
1939,0.004070000000000001
1940,0.00364
1941,0.00372
1942,0.00393
1943,0.00426
1944,0.004690000000000001
1945,0.00521
1946,0.00579
1947,0.00642
1948,0.00708
1949,0.0077599999999999995
1950,0.00844
1951,0.00915
1952,0.00994
1953,0.0108
1954,0.011800000000000001
1955,0.0128
1956,0.014
1957,0.0152
1958,0.0165
1959,0.0179
1960,0.019399999999999997
1961,0.0211
1962,0.023100000000000002
1963,0.0253
1964,0.027800000000000002
1965,0.030600000000000002
1966,0.033600000000000005
1967,0.036899999999999995
1968,0.0404
1969,0.044
1970,0.0541
1971,0.0603
1972,0.0635
1973,0.07709999999999999
1974,0.0948
1975,0.314
1976,0.558
1977,0.645
1978,0.656
1979,1.39
1980,1.57
1981,1.6
1982,1.67
1983,1.65
1984,1.7
1985,1.73
1986,1.83
1987,1.9
1988,1.96
1989,2.07
1990,1.99
1991,1.92
1992,0.381
1993,0.335
1994,0.294
1995,0.232
1996,0.227
1997,0.22
1998,0.22
1999,0.228
2000,0.186
2001,0.164
2002,0.213
2003,0.327
2004,0.45
2005,0.32
2006,0.228
2007,0.608
2008,0.468
2009,0.514
2010,0.556
2011,0.62
2012,0.771
2013,1.18
2014,1.69
2015,2.04
2016,2.17
2017,1.82
2018,1.95