year,IPC2
1850,2.84e-08
1851,2.84e-08
1852,2.84e-08
1853,2.84e-08
1854,2.84e-08
1855,2.84e-08
1856,2.84e-08
1857,2.84e-08
1858,2.84e-08
1859,2.84e-08
1860,2.84e-08
1861,2.84e-08
1862,2.84e-08
1863,2.84e-08
1864,2.84e-08
1865,2.84e-08
1866,2.84e-08
1867,2.84e-08
1868,2.84e-08
1869,2.84e-08
1870,2.84e-08
1871,2.84e-08
1872,2.84e-08
1873,2.84e-08
1874,2.84e-08
1875,2.84e-08
1876,2.84e-08
1877,2.84e-08
1878,2.84e-08
1879,2.84e-08
1880,2.84e-08
1881,2.84e-08
1882,2.84e-08
1883,2.84e-08
1884,2.84e-08
1885,2.84e-08
1886,2.84e-08
1887,2.84e-08
1888,2.84e-08
1889,2.84e-08
1890,2.84e-08
1891,3.25e-08
1892,4.38e-08
1893,6.090000000000001e-08
1894,8.24e-08
1895,1.07e-07
1896,1.33e-07
1897,1.5899999999999998e-07
1898,1.84e-07
1899,2.06e-07
1900,2.25e-07
1901,2.4000000000000003e-07
1902,2.53e-07
1903,2.66e-07
1904,2.78e-07
1905,2.8899999999999995e-07
1906,3.01e-07
1907,3.13e-07
1908,3.2600000000000003e-07
1909,3.4000000000000003e-07
1910,3.5599999999999996e-07
1911,3.73e-07
1912,3.91e-07
1913,4.1e-07
1914,4.3100000000000003e-07
1915,4.5199999999999997e-07
1916,4.75e-07
1917,4.979999999999999e-07
1918,5.23e-07
1919,5.490000000000001e-07
1920,5.76e-07
1921,6.98e-07
1922,9.89e-07
1923,1.42e-06
1924,1.95e-06
1925,2.55e-06
1926,3.19e-06
1927,3.83e-06
1928,4.45e-06
1929,5.0099999999999995e-06
1930,5.47e-06
1931,5.8700000000000005e-06
1932,6.25e-06
1933,6.62e-06
1934,6.98e-06
1935,7.33e-06
1936,7.680000000000001e-06
1937,8.030000000000001e-06
1938,8.39e-06
1939,8.750000000000001e-06
1940,9.119999999999999e-06
1941,9.509999999999999e-06
1942,9.9e-06
1943,1.03e-05
1944,1.07e-05
1945,1.12e-05
1946,1.17e-05
1947,1.22e-05
1948,1.2699999999999999e-05
1949,1.33e-05
1950,1.3899999999999999e-05
1951,1.46e-05
1952,1.53e-05
1953,1.61e-05
1954,1.7e-05
1955,1.78e-05
1956,1.88e-05
1957,1.9699999999999998e-05
1958,2.07e-05
1959,2.17e-05
1960,2.2800000000000002e-05
1961,2.39e-05
1962,2.52e-05
1963,2.66e-05
1964,2.81e-05
1965,2.96e-05
1966,3.11e-05
1967,3.2500000000000004e-05
1968,3.37e-05
1969,3.48e-05
1970,3.5000000000000004e-05
1971,4.1e-05
1972,8.19e-05
1973,0.000123
1974,0.0174
1975,0.165
1976,0.341
1977,0.467
1978,0.294
1979,0.29
1980,0.306
1981,0.368
1982,0.331
1983,0.277
1984,0.345
1985,0.492
1986,0.546
1987,0.38
1988,0.516
1989,0.52
1990,0.546
1991,0.509
1992,0.557
1993,0.532
1994,0.543
1995,0.559
1996,0.546
1997,0.564
1998,0.564
1999,0.564
2000,0.555
2001,0.562
2002,0.573
2003,0.573
2004,0.546
2005,0.546
2006,0.546
2007,0.591
2008,0.591
2009,1.61
2010,3.12
2011,3.25
2012,2.43
2013,1.83
2014,1.73
2015,1.05
2016,0.88
2017,0.458
2018,0.229