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
1921,0.0
1922,0.0
1923,0.0
1924,0.0
1925,0.0
1926,0.0
1927,0.0
1928,0.0
1929,0.0
1930,0.0
1931,0.0
1932,0.0
1933,0.0
1934,0.0
1935,0.0
1936,0.0
1937,0.0
1938,0.0
1939,0.0
1940,0.0
1941,0.0
1942,0.0
1943,0.0
1944,0.0
1945,0.0
1946,0.0
1947,0.0
1948,0.0
1949,0.0
1950,0.0
1951,0.0
1952,0.0
1953,0.0
1954,0.0
1955,0.0
1956,0.0
1957,0.0
1958,0.0
1959,0.0
1960,1.13e-22
1961,1.45e-07
1962,2.8899999999999995e-07
1963,4.34e-07
1964,5.79e-07
1965,7.240000000000001e-07
1966,8.68e-07
1967,1.01e-06
1968,1.16e-06
1969,1.2999999999999998e-06
1970,1.4499999999999999e-06
1971,1.59e-06
1972,1.74e-06
1973,1.88e-06
1974,2.03e-06
1975,2.17e-06
1976,2.32e-06
1977,2.4599999999999997e-06
1978,2.5999999999999997e-06
1979,2.76e-06
1980,2.94e-06
1981,3.1199999999999998e-06
1982,3.3899999999999997e-06
1983,3.7399999999999998e-06
1984,4.05e-06
1985,4.32e-06
1986,4.54e-06
1987,4.87e-06
1988,5.199999999999999e-06
1989,5.56e-06
1990,9.37e-06
1991,9.53e-06
1992,9.83e-06
1993,1.17e-05
1994,1.46e-05
1995,2.47e-05
1996,2.91e-05
1997,3.56e-05
1998,3.8e-05
1999,5.37e-05
2000,7.03e-05
2001,6.890000000000001e-05
2002,0.000106
2003,0.00011999999999999999
2004,0.00014099999999999998
2005,0.000207
2006,0.000219
2007,0.00023400000000000002
2008,0.00023999999999999998
2009,0.000232
2010,0.000263
2011,0.00026700000000000004
2012,0.000255
2013,0.000262
2014,0.000241
2015,0.00022
2016,0.000231
2017,0.000228
2018,0.00022700000000000002