year,IPC2
1850,6.44e-07
1851,6.44e-07
1852,6.44e-07
1853,6.44e-07
1854,6.44e-07
1855,6.44e-07
1856,6.44e-07
1857,6.44e-07
1858,6.44e-07
1859,6.44e-07
1860,6.44e-07
1861,6.44e-07
1862,6.44e-07
1863,6.44e-07
1864,6.44e-07
1865,6.44e-07
1866,6.45e-07
1867,6.45e-07
1868,6.45e-07
1869,6.45e-07
1870,6.45e-07
1871,6.45e-07
1872,6.45e-07
1873,6.45e-07
1874,6.45e-07
1875,6.45e-07
1876,6.45e-07
1877,6.45e-07
1878,6.45e-07
1879,6.45e-07
1880,6.45e-07
1881,6.45e-07
1882,6.45e-07
1883,6.45e-07
1884,6.45e-07
1885,6.45e-07
1886,6.45e-07
1887,6.45e-07
1888,6.45e-07
1889,6.45e-07
1890,6.45e-07
1891,7.53e-07
1892,1.05e-06
1893,1.5100000000000002e-06
1894,2.0699999999999997e-06
1895,2.7200000000000002e-06
1896,3.41e-06
1897,4.11e-06
1898,4.77e-06
1899,5.36e-06
1900,5.84e-06
1901,6.2399999999999995e-06
1902,6.6e-06
1903,6.9300000000000006e-06
1904,7.25e-06
1905,7.56e-06
1906,7.870000000000001e-06
1907,8.200000000000001e-06
1908,8.540000000000001e-06
1909,8.91e-06
1910,9.33e-06
1911,9.780000000000001e-06
1912,1.03e-05
1913,1.08e-05
1914,1.1299999999999999e-05
1915,1.1900000000000001e-05
1916,1.25e-05
1917,1.31e-05
1918,1.3700000000000001e-05
1919,1.44e-05
1920,1.5100000000000001e-05
1921,1.7999999999999997e-05
1922,2.48e-05
1923,3.46e-05
1924,4.67e-05
1925,6.05e-05
1926,7.52e-05
1927,8.999999999999999e-05
1928,0.000104
1929,0.00011700000000000001
1930,0.000128
1931,0.00013700000000000002
1932,0.000146
1933,0.000155
1934,0.000163
1935,0.000171
1936,0.00017999999999999998
1937,0.000188
1938,0.00019600000000000002
1939,0.000204
1940,0.000213
1941,0.00022600000000000002
1942,0.000248
1943,0.000277
1944,0.000311
1945,0.00035
1946,0.00039200000000000004
1947,0.00043599999999999997
1948,0.000479
1949,0.000522
1950,0.0005629999999999999
1951,0.000602
1952,0.000643
1953,0.0006850000000000001
1954,0.0007289999999999999
1955,0.000773
1956,0.000819
1957,0.000865
1958,0.000912
1959,0.0009599999999999999
1960,0.00101
1961,0.00106
1962,0.00111
1963,0.00116
1964,0.00121
1965,0.00126
1966,0.00132
1967,0.0013700000000000001
1968,0.0014299999999999998
1969,0.0020099999999999996
1970,0.0029300000000000003
1971,0.0986
1972,0.382
1973,0.504
1974,0.477
1975,0.475
1976,0.601
1977,0.629
1978,0.657
1979,0.677
1980,0.681
1981,0.678
1982,0.717
1983,0.959
1984,1.06
1985,1.06
1986,1.02
1987,1.07
1988,1.06
1989,1.04
1990,1.03
1991,0.972
1992,0.865
1993,0.933
1994,0.706
1995,0.85
1996,0.883
1997,0.79
1998,0.856
1999,0.85
2000,0.826
2001,0.791
2002,0.794
2003,0.888
2004,0.979
2005,1.06
2006,1.15
2007,1.25
2008,1.32
2009,1.43
2010,1.61
2011,1.66
2012,1.8
2013,1.88
2014,2.06
2015,2.11
2016,2.22
2017,2.42
2018,2.68