year,IPC2
1850,5.66e-05
1851,5.66e-05
1852,5.66e-05
1853,5.66e-05
1854,5.66e-05
1855,5.66e-05
1856,5.66e-05
1857,5.66e-05
1858,5.66e-05
1859,5.66e-05
1860,5.66e-05
1861,5.66e-05
1862,5.66e-05
1863,5.66e-05
1864,5.66e-05
1865,5.66e-05
1866,5.66e-05
1867,5.66e-05
1868,5.66e-05
1869,5.66e-05
1870,5.66e-05
1871,5.66e-05
1872,5.66e-05
1873,5.66e-05
1874,5.66e-05
1875,5.66e-05
1876,5.66e-05
1877,5.66e-05
1878,5.66e-05
1879,5.66e-05
1880,5.66e-05
1881,5.66e-05
1882,5.66e-05
1883,5.66e-05
1884,5.66e-05
1885,5.66e-05
1886,5.66e-05
1887,5.66e-05
1888,5.67e-05
1889,5.67e-05
1890,5.67e-05
1891,6.48e-05
1892,8.730000000000001e-05
1893,0.000121
1894,0.000164
1895,0.000213
1896,0.000265
1897,0.000317
1898,0.000367
1899,0.000412
1900,0.000448
1901,0.00047799999999999996
1902,0.000505
1903,0.00053
1904,0.000554
1905,0.0005769999999999999
1906,0.000601
1907,0.000625
1908,0.000651
1909,0.000679
1910,0.0007099999999999999
1911,0.000744
1912,0.00078
1913,0.0008179999999999999
1914,0.000859
1915,0.000902
1916,0.0009469999999999999
1917,0.000994
1918,0.0010400000000000001
1919,0.00109
1920,0.00115
1921,0.00395
1922,0.0115
1923,0.022600000000000002
1924,0.0361
1925,0.0508
1926,0.06559999999999999
1927,0.0793
1928,0.09079999999999999
1929,0.0989
1930,0.102
1931,0.101
1932,0.09620000000000001
1933,0.0887
1934,0.07940000000000001
1935,0.0691
1936,0.0589
1937,0.0495
1938,0.042
1939,0.0371
1940,0.0357
1941,0.036899999999999995
1942,0.0389
1943,0.0416
1944,0.0448
1945,0.048600000000000004
1946,0.0528
1947,0.0573
1948,0.062
1949,0.0668
1950,0.0716
1951,0.07659999999999999
1952,0.08220000000000001
1953,0.0884
1954,0.095
1955,0.102
1956,0.11
1957,0.118
1958,0.127
1959,0.136
1960,0.145
1961,0.156
1962,0.168
1963,0.182
1964,0.198
1965,0.215
1966,0.232
1967,0.251
1968,0.271
1969,0.291
1970,0.374
1971,0.445
1972,0.489
1973,0.655
1974,0.777
1975,0.875
1976,1.16
1977,1.32
1978,1.51
1979,1.75
1980,1.88
1981,1.88
1982,1.88
1983,2.03
1984,2.49
1985,2.57
1986,2.81
1987,3.05
1988,3.43
1989,3.76
1990,4.23
1991,4.63
1992,4.87
1993,5.21
1994,5.53
1995,6.17
1996,8.98
1997,10.1
1998,9.96
1999,14.6
2000,12.4
2001,9.31
2002,13.1
2003,11.4
2004,10.3
2005,11.0
2006,9.61
2007,9.69
2008,10.1
2009,7.96
2010,7.65
2011,6.2
2012,6.32
2013,6.7
2014,7.23
2015,5.73
2016,4.88
2017,5.32
2018,5.24