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
1921,1.83e-07
1922,6.79e-07
1923,1.41e-06
1924,2.3e-06
1925,3.2599999999999997e-06
1926,4.23e-06
1927,5.12e-06
1928,5.85e-06
1929,6.34e-06
1930,6.519999999999999e-06
1931,6.38e-06
1932,5.98e-06
1933,5.39e-06
1934,4.669999999999999e-06
1935,3.89e-06
1936,3.11e-06
1937,2.39e-06
1938,1.8e-06
1939,1.4e-06
1940,1.25e-06
1941,1.29e-06
1942,1.39e-06
1943,1.5399999999999999e-06
1944,1.74e-06
1945,1.9699999999999998e-06
1946,2.2399999999999997e-06
1947,2.52e-06
1948,2.81e-06
1949,3.1e-06
1950,3.3899999999999997e-06
1951,3.68e-06
1952,4e-06
1953,4.35e-06
1954,4.74e-06
1955,5.15e-06
1956,5.590000000000001e-06
1957,6.0600000000000004e-06
1958,6.56e-06
1959,7.09e-06
1960,7.65e-06
1961,8.269999999999999e-06
1962,8.98e-06
1963,9.79e-06
1964,1.07e-05
1965,1.17e-05
1966,1.2699999999999999e-05
1967,1.3899999999999999e-05
1968,1.5100000000000001e-05
1969,1.65e-05
1970,1.7899999999999998e-05
1971,1.95e-05
1972,2.17e-05
1973,2.42e-05
1974,2.7099999999999998e-05
1975,3.01e-05
1976,3.32e-05
1977,3.6400000000000004e-05
1978,3.96e-05
1979,4.26e-05
1980,4.53e-05
1981,4.8e-05
1982,5.06e-05
1983,5.32e-05
1984,5.58e-05
1985,5.84e-05
1986,6.110000000000001e-05
1987,6.379999999999999e-05
1988,6.65e-05
1989,6.92e-05
1990,6.92e-05
1991,0.00019
1992,0.00185
1993,0.00323
1994,0.0059900000000000005
1995,0.011300000000000001
1996,0.018
1997,0.0252
1998,0.0345
1999,0.0456
2000,0.058
2001,0.0725
2002,0.0887
2003,0.101
2004,0.114
2005,0.133
2006,0.149
2007,0.164
2008,0.179
2009,0.194
2010,0.201
2011,0.238
2012,0.277
2013,0.303
2014,0.325
2015,0.348
2016,0.368
2017,0.441
2018,0.49