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
1921,0.000675
1922,0.0025099999999999996
1923,0.0052
1924,0.00848
1925,0.012
1926,0.0156
1927,0.0189
1928,0.0216
1929,0.023399999999999997
1930,0.0241
1931,0.0235
1932,0.0221
1933,0.019899999999999998
1934,0.0172
1935,0.0144
1936,0.0115
1937,0.00883
1938,0.0066500000000000005
1939,0.00517
1940,0.00463
1941,0.004719999999999999
1942,0.0049900000000000005
1943,0.00541
1944,0.00595
1945,0.00661
1946,0.00735
1947,0.008150000000000001
1948,0.00899
1949,0.00985
1950,0.0107
1951,0.0116
1952,0.0126
1953,0.013699999999999999
1954,0.015
1955,0.016300000000000002
1956,0.0177
1957,0.0193
1958,0.021
1959,0.022699999999999998
1960,0.0246
1961,0.026699999999999998
1962,0.0292
1963,0.032100000000000004
1964,0.0353
1965,0.038799999999999994
1966,0.0426
1967,0.046700000000000005
1968,0.051
1969,0.055600000000000004
1970,0.0684
1971,0.07590000000000001
1972,0.08009999999999999
1973,0.0968
1974,0.119
1975,0.375
1976,0.661
1977,0.763
1978,0.777
1979,1.64
1980,1.84
1981,1.88
1982,1.96
1983,1.94
1984,1.99
1985,2.03
1986,2.15
1987,2.23
1988,2.3
1989,2.43
1990,2.33
1991,2.25
1992,0.443
1993,0.388
1994,0.343
1995,0.264
1996,0.258
1997,0.249
1998,0.249
1999,0.256
2000,0.222
2001,0.196
2002,0.259
2003,0.402
2004,0.559
2005,0.394
2006,0.278
2007,0.758
2008,0.579
2009,0.636
2010,0.69
2011,0.771
2012,0.97
2013,1.53
2014,2.23
2015,2.71
2016,2.88
2017,2.4
2018,2.57