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
1921,9.82e-05
1922,0.000365
1923,0.000758
1924,0.00124
1925,0.00175
1926,0.00227
1927,0.00275
1928,0.00314
1929,0.0034100000000000003
1930,0.0035099999999999997
1931,0.0034300000000000003
1932,0.00321
1933,0.0029
1934,0.0025099999999999996
1935,0.00209
1936,0.0016699999999999998
1937,0.0012900000000000001
1938,0.000968
1939,0.000753
1940,0.000674
1941,0.000687
1942,0.000726
1943,0.000786
1944,0.000865
1945,0.000959
1946,0.00107
1947,0.0011799999999999998
1948,0.0013
1949,0.0014299999999999998
1950,0.00155
1951,0.0016799999999999999
1952,0.00183
1953,0.00199
1954,0.00217
1955,0.0023599999999999997
1956,0.00257
1957,0.0028
1958,0.00304
1959,0.0033
1960,0.00357
1961,0.0038799999999999998
1962,0.00424
1963,0.00466
1964,0.00512
1965,0.00563
1966,0.00618
1967,0.0067800000000000004
1968,0.00741
1969,0.00808
1970,0.00878
1971,0.009609999999999999
1972,0.0106
1973,0.011800000000000001
1974,0.013
1975,0.0144
1976,0.0158
1977,0.0172
1978,0.018600000000000002
1979,0.019899999999999998
1980,0.0211
1981,0.0223
1982,0.023399999999999997
1983,0.0245
1984,0.0255
1985,0.026600000000000002
1986,0.027800000000000002
1987,0.029
1988,0.030199999999999998
1989,0.0316
1990,0.033
1991,0.0357
1992,0.040299999999999996
1993,0.0469
1994,0.054799999999999995
1995,0.06459999999999999
1996,0.0762
1997,0.0888
1998,0.104
1999,0.12
2000,0.206
2001,0.179
2002,0.219
2003,0.296
2004,0.433
2005,0.381
2006,0.452
2007,0.501
2008,0.55
2009,0.594
2010,0.638
2011,0.659
2012,0.7
2013,0.742
2014,0.784
2015,0.826
2016,0.867
2017,0.909
2018,0.951