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
1921,9.23e-08
1922,3.43e-07
1923,7.119999999999999e-07
1924,1.16e-06
1925,1.65e-06
1926,2.14e-06
1927,2.58e-06
1928,2.95e-06
1929,3.2000000000000003e-06
1930,3.3e-06
1931,3.22e-06
1932,3.0200000000000003e-06
1933,2.7200000000000002e-06
1934,2.3600000000000003e-06
1935,1.96e-06
1936,1.57e-06
1937,1.2099999999999998e-06
1938,9.1e-07
1939,7.07e-07
1940,6.33e-07
1941,6.45e-07
1942,6.82e-07
1943,7.380000000000001e-07
1944,8.13e-07
1945,9.01e-07
1946,1e-06
1947,1.1100000000000002e-06
1948,1.22e-06
1949,1.34e-06
1950,1.46e-06
1951,1.5800000000000001e-06
1952,1.72e-06
1953,1.8699999999999999e-06
1954,2.04e-06
1955,2.2200000000000003e-06
1956,2.4199999999999997e-06
1957,2.63e-06
1958,2.8500000000000002e-06
1959,3.1e-06
1960,3.35e-06
1961,3.64e-06
1962,3.98e-06
1963,4.37e-06
1964,4.81e-06
1965,5.29e-06
1966,5.81e-06
1967,6.37e-06
1968,6.96e-06
1969,7.59e-06
1970,8.25e-06
1971,9.03e-06
1972,9.97e-06
1973,1.11e-05
1974,1.23e-05
1975,1.35e-05
1976,1.48e-05
1977,1.61e-05
1978,1.74e-05
1979,1.87e-05
1980,1.98e-05
1981,2.09e-05
1982,2.2e-05
1983,2.3e-05
1984,2.4e-05
1985,2.5e-05
1986,2.61e-05
1987,2.7199999999999997e-05
1988,2.8400000000000003e-05
1989,2.97e-05
1990,2.96e-05
1991,7.84e-05
1992,0.000171
1993,0.000805
1994,0.0018700000000000001
1995,0.00393
1996,0.00651
1997,0.00863
1998,0.0116
1999,0.0154
2000,0.0201
2001,0.026199999999999998
2002,0.033100000000000004
2003,0.041100000000000005
2004,0.049
2005,0.0579
2006,0.0659
2007,0.0736
2008,0.0814
2009,0.0892
2010,0.097
2011,0.09540000000000001
2012,0.0937
2013,0.112
2014,0.118
2015,0.125
2016,0.132
2017,0.139
2018,0.146