year,IPC2
1850,0.0
1851,0.0
1852,0.0
1853,0.0
1854,0.0
1855,0.0
1856,0.0
1857,0.0
1858,0.0
1859,0.0
1860,0.0
1861,0.0
1862,0.0
1863,0.0
1864,0.0
1865,0.0
1866,0.0
1867,0.0
1868,0.0
1869,0.0
1870,0.0
1871,0.0
1872,0.0
1873,0.0
1874,0.0
1875,0.0
1876,0.0
1877,0.0
1878,0.0
1879,0.0
1880,0.0
1881,0.0
1882,0.0
1883,0.0
1884,0.0
1885,0.0
1886,0.0
1887,0.0
1888,0.0
1889,0.0
1890,0.0
1891,0.0
1892,0.0
1893,0.0
1894,0.0
1895,0.0
1896,0.0
1897,0.0
1898,0.0
1899,0.0
1900,0.0
1901,0.0
1902,0.0
1903,0.0
1904,0.0
1905,0.0
1906,0.0
1907,0.0
1908,0.0
1909,0.0
1910,0.0
1911,0.0
1912,0.0
1913,0.0
1914,0.0
1915,0.0
1916,0.0
1917,0.0
1918,0.0
1919,0.0
1920,0.0
1921,1.8e-10
1922,6.68e-10
1923,1.39e-09
1924,2.26e-09
1925,3.2100000000000003e-09
1926,4.16e-09
1927,5.03e-09
1928,5.75e-09
1929,6.240000000000001e-09
1930,6.4200000000000006e-09
1931,6.27e-09
1932,5.8799999999999995e-09
1933,5.3e-09
1934,4.59e-09
1935,3.829999999999999e-09
1936,3.0599999999999998e-09
1937,2.35e-09
1938,1.77e-09
1939,1.38e-09
1940,1.23e-09
1941,1.26e-09
1942,1.33e-09
1943,1.44e-09
1944,1.58e-09
1945,1.7600000000000001e-09
1946,1.95e-09
1947,2.16e-09
1948,2.38e-09
1949,2.61e-09
1950,2.84e-09
1951,3.08e-09
1952,3.34e-09
1953,3.64e-09
1954,3.96e-09
1955,4.32e-09
1956,4.7e-09
1957,5.1200000000000005e-09
1958,5.56e-09
1959,6.03e-09
1960,6.53e-09
1961,7.1e-09
1962,7.76e-09
1963,8.52e-09
1964,9.36e-09
1965,1.03e-08
1966,1.13e-08
1967,1.24e-08
1968,1.3600000000000001e-08
1969,1.48e-08
1970,1.47e-08
1971,3.32e-08
1972,7.480000000000001e-08
1973,1.69e-07
1974,3.8e-07
1975,8.56e-07
1976,1.93e-06
1977,4.35e-06
1978,9.81e-06
1979,2.2100000000000002e-05
1980,4.99e-05
1981,0.000112
1982,0.000253
1983,0.000571
1984,0.0012900000000000001
1985,0.0029
1986,0.00654
1987,0.0147
1988,0.0332
1989,0.075
1990,0.132
1991,0.292
1992,0.481
1993,0.481
1994,0.494
1995,0.491
1996,0.587
1997,0.712
1998,0.873
1999,0.941
2000,1.14
2001,1.22
2002,1.46
2003,1.65
2004,1.73
2005,2.55
2006,2.62
2007,3.01
2008,2.98
2009,2.84
2010,3.16
2011,3.56
2012,3.57
2013,3.64
2014,3.88
2015,4.04
2016,4.0
2017,4.36
2018,4.47