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
1921,0.0017900000000000001
1922,0.00246
1923,0.0034300000000000003
1924,0.00464
1925,0.00601
1926,0.00746
1927,0.00893
1928,0.0103
1929,0.0116
1930,0.0127
1931,0.0136
1932,0.0145
1933,0.0154
1934,0.0162
1935,0.017
1936,0.0178
1937,0.018600000000000002
1938,0.0195
1939,0.020300000000000002
1940,0.0211
1941,0.022
1942,0.0229
1943,0.0238
1944,0.0248
1945,0.0258
1946,0.0268
1947,0.028
1948,0.0292
1949,0.0305
1950,0.0319
1951,0.0334
1952,0.035
1953,0.0368
1954,0.038700000000000005
1955,0.0407
1956,0.0429
1957,0.0451
1958,0.047299999999999995
1959,0.0496
1960,0.052
1961,0.0546
1962,0.0575
1963,0.0608
1964,0.06409999999999999
1965,0.0676
1966,0.0709
1967,0.0741
1968,0.077
1969,0.07959999999999999
1970,0.118
1971,0.141
1972,0.14
1973,0.204
1974,0.232
1975,0.247
1976,0.274
1977,0.285
1978,0.337
1979,0.399
1980,0.396
1981,0.401
1982,0.389
1983,0.425
1984,0.619
1985,0.534
1986,0.632
1987,0.723
1988,0.929
1989,0.98
1990,0.974
1991,0.991
1992,0.861
1993,1.06
1994,1.17
1995,1.45
1996,2.14
1997,2.36
1998,2.87
1999,3.01
2000,2.74
2001,3.72
2002,3.71
2003,3.75
2004,3.26
2005,3.11
2006,3.43
2007,3.45
2008,3.46
2009,2.27
2010,2.34
2011,2.11
2012,2.35
2013,2.44
2014,2.57
2015,1.55
2016,1.45
2017,1.55
2018,1.39