year,IPC2
1850,6.39e-05
1851,6.39e-05
1852,6.39e-05
1853,6.39e-05
1854,6.39e-05
1855,6.39e-05
1856,6.39e-05
1857,6.39e-05
1858,6.39e-05
1859,6.39e-05
1860,6.39e-05
1861,6.4e-05
1862,6.4e-05
1863,6.4e-05
1864,6.4e-05
1865,6.4e-05
1866,6.4e-05
1867,6.4e-05
1868,6.4e-05
1869,6.4e-05
1870,6.4e-05
1871,6.4e-05
1872,6.4e-05
1873,6.4e-05
1874,6.4e-05
1875,6.4e-05
1876,6.4e-05
1877,6.4e-05
1878,6.4e-05
1879,6.4e-05
1880,6.4e-05
1881,6.4e-05
1882,6.4e-05
1883,6.4e-05
1884,6.4e-05
1885,6.4e-05
1886,6.4e-05
1887,6.41e-05
1888,6.41e-05
1889,6.41e-05
1890,6.41e-05
1891,7.48e-05
1892,0.000104
1893,0.000149
1894,0.000206
1895,0.00027
1896,0.000339
1897,0.000408
1898,0.00047299999999999995
1899,0.000532
1900,0.00058
1901,0.000619
1902,0.000655
1903,0.0006879999999999999
1904,0.0007199999999999999
1905,0.000751
1906,0.000782
1907,0.0008139999999999999
1908,0.000848
1909,0.000885
1910,0.0009260000000000001
1911,0.000971
1912,0.00102
1913,0.00107
1914,0.0011200000000000001
1915,0.0011799999999999998
1916,0.00124
1917,0.0013
1918,0.00136
1919,0.0014299999999999998
1920,0.0015
1921,0.00504
1922,0.0145
1923,0.0285
1924,0.0455
1925,0.06409999999999999
1926,0.08270000000000001
1927,0.1
1928,0.114
1929,0.125
1930,0.129
1931,0.127
1932,0.121
1933,0.111
1934,0.0993
1935,0.0863
1936,0.0732
1937,0.061200000000000004
1938,0.0515
1939,0.045200000000000004
1940,0.0434
1941,0.0448
1942,0.047200000000000006
1943,0.0503
1944,0.054200000000000005
1945,0.0588
1946,0.0638
1947,0.0692
1948,0.07479999999999999
1949,0.08059999999999999
1950,0.0864
1951,0.09259999999999999
1952,0.0994
1953,0.107
1954,0.115
1955,0.124
1956,0.133
1957,0.143
1958,0.154
1959,0.165
1960,0.177
1961,0.19
1962,0.205
1963,0.222
1964,0.241
1965,0.262
1966,0.284
1967,0.307
1968,0.332
1969,0.357
1970,0.459
1971,0.539
1972,0.587
1973,0.776
1974,0.915
1975,1.0
1976,1.31
1977,1.48
1978,1.69
1979,1.96
1980,2.1
1981,2.11
1982,2.1
1983,2.29
1984,2.8
1985,2.87
1986,3.15
1987,3.43
1988,3.91
1989,4.28
1990,4.86
1991,5.31
1992,5.59
1993,6.07
1994,6.46
1995,7.28
1996,10.8
1997,12.3
1998,12.1
1999,17.9
2000,15.1
2001,11.2
2002,15.9
2003,13.6
2004,12.1
2005,12.8
2006,10.9
2007,10.9
2008,11.3
2009,8.7
2010,8.17
2011,6.72
2012,6.92
2013,7.29
2014,7.84
2015,6.14
2016,5.28
2017,5.47
2018,5.36