year,IPC1,IPC2
1850,0.00011,1.66e-06
1851,0.000115,1.75e-06
1852,0.000122,1.85e-06
1853,0.000128,1.95e-06
1854,0.000135,2.0500000000000003e-06
1855,0.00014299999999999998,2.17e-06
1856,0.00015,2.2799999999999998e-06
1857,0.00015900000000000002,2.41e-06
1858,0.00016700000000000002,2.5300000000000003e-06
1859,0.000176,2.6700000000000003e-06
1860,0.000185,2.8e-06
1861,0.000194,2.94e-06
1862,0.000204,3.09e-06
1863,0.000214,3.25e-06
1864,0.000224,3.41e-06
1865,0.000236,3.58e-06
1866,0.000247,3.7499999999999997e-06
1867,0.000259,3.9399999999999995e-06
1868,0.000272,4.13e-06
1869,0.000285,4.33e-06
1870,0.000299,4.54e-06
1871,0.000313,4.76e-06
1872,0.00032900000000000003,4.99e-06
1873,0.000345,5.24e-06
1874,0.00036199999999999996,5.5e-06
1875,0.00038,5.77e-06
1876,0.000399,6.0600000000000004e-06
1877,0.00041799999999999997,6.349999999999999e-06
1878,0.000438,6.65e-06
1879,0.000458,6.96e-06
1880,0.000479,7.270000000000001e-06
1881,0.0005,7.59e-06
1882,0.000521,7.91e-06
1883,0.0005430000000000001,8.25e-06
1884,0.000566,8.6e-06
1885,0.0005899999999999999,8.959999999999999e-06
1886,0.000614,9.33e-06
1887,0.00064,9.71e-06
1888,0.000666,1.01e-05
1889,0.000694,1.0500000000000001e-05
1890,0.000776,1.0399999999999999e-05
1891,0.0008070000000000001,1.0399999999999999e-05
1892,0.0008399999999999999,1.0399999999999999e-05
1893,0.000878,1.0399999999999999e-05
1894,0.0009180000000000001,1.0399999999999999e-05
1895,0.0009609999999999999,1.0399999999999999e-05
1896,0.00101,1.0399999999999999e-05
1897,0.0010500000000000002,1.0399999999999999e-05
1898,0.0011,1.0399999999999999e-05
1899,0.00116,1.0399999999999999e-05
1900,0.00121,1.0399999999999999e-05
1901,0.00127,1.0399999999999999e-05
1902,0.00133,1.0399999999999999e-05
1903,0.0014,1.0399999999999999e-05
1904,0.00148,1.0399999999999999e-05
1905,0.00156,1.0399999999999999e-05
1906,0.00163,1.0399999999999999e-05
1907,0.00171,1.0399999999999999e-05
1908,0.0017900000000000001,1.0399999999999999e-05
1909,0.0018700000000000001,1.0399999999999999e-05
1910,0.00195,1.0399999999999999e-05
1911,0.00202,1.0399999999999999e-05
1912,0.00209,1.0399999999999999e-05
1913,0.00216,1.0399999999999999e-05
1914,0.00222,1.0399999999999999e-05
1915,0.00229,1.0399999999999999e-05
1916,0.0023599999999999997,1.0399999999999999e-05
1917,0.0024300000000000003,1.0399999999999999e-05
1918,0.0025099999999999996,1.0399999999999999e-05
1919,0.0025800000000000003,1.0399999999999999e-05
1920,0.00266,1.0399999999999999e-05
1921,0.00275,1.07e-05
1922,0.0028399999999999996,1.17e-05
1923,0.0029300000000000003,1.31e-05
1924,0.00302,1.4999999999999999e-05
1925,0.00312,1.73e-05
1926,0.00322,1.98e-05
1927,0.00332,2.2599999999999997e-05
1928,0.00342,2.5399999999999997e-05
1929,0.0035299999999999997,2.8400000000000003e-05
1930,0.00365,3.12e-05
1931,0.00376,3.4200000000000005e-05
1932,0.0038799999999999998,3.75e-05
1933,0.004,4.1099999999999996e-05
1934,0.00413,4.4999999999999996e-05
1935,0.00426,4.92e-05
1936,0.00439,5.38e-05
1937,0.00454,5.88e-05
1938,0.004690000000000001,6.41e-05
1939,0.00484,6.98e-05
1940,0.00501,7.59e-05
1941,0.00517,8.28e-05
1942,0.00534,9.080000000000001e-05
1943,0.00551,9.97e-05
1944,0.005679999999999999,0.00011
1945,0.00588,0.00011999999999999999
1946,0.00608,0.000132
1947,0.00632,0.00014399999999999998
1948,0.00658,0.000157
1949,0.0089,0.00017
1950,0.00733,0.000184
1951,0.011,0.000199
1952,0.011,0.000215
1953,0.011,0.00023300000000000003
1954,0.011,0.000252
1955,0.011,0.000272
1956,0.011,0.00029299999999999997
1957,0.011,0.000315
1958,0.0147,0.000339
1959,0.0147,0.000364
1960,0.022,0.00039
1961,0.0183,0.00041799999999999997
1962,0.0257,0.000448
1963,0.0147,0.000479
1964,0.022,0.000513
1965,0.022,0.000549
1966,0.0293,0.000588
1967,0.0367,0.00063
1968,0.040299999999999996,0.000675
1969,0.047700000000000006,0.0007239999999999999
1970,0.044,0.0006969999999999999
1971,0.047700000000000006,0.000695
1972,0.047700000000000006,0.0006929999999999999
1973,0.055,0.0007059999999999999
1974,0.0367,0.0007
1975,0.047700000000000006,0.000704
1976,0.047700000000000006,0.0006979999999999999
1977,0.047700000000000006,0.000699
1978,0.0513,0.0006919999999999999
1979,0.047700000000000006,0.0006919999999999999
1980,0.047700000000000006,0.00069
1981,0.0587,0.000708
1982,0.062299999999999994,0.000717
1983,0.062299999999999994,0.000732
1984,0.062299999999999994,0.000728
1985,0.062299999999999994,0.000758
1986,0.066,0.000756
1987,0.0733,0.000777
1988,0.0953,0.000764
1989,0.103,0.000767
1990,0.106,0.0008269999999999999
1991,0.11,0.0008719999999999999
1992,0.117,0.00087
1993,0.121,0.0008810000000000001
1994,0.143,0.000876
1995,0.15,0.000848
1996,0.154,0.000859
1997,0.169,0.0009040000000000001
1998,0.176,0.000906
1999,0.194,0.000923
2000,0.191,0.000823
2001,0.194,0.000885
2002,0.205,0.000886
2003,0.216,0.000889
2004,0.205,0.000939
2005,0.216,0.000978
2006,0.231,0.000971
2007,0.238,0.000968
2008,0.253,0.0009739999999999999
2009,0.253,0.00102
2010,0.26,0.000999
2011,0.253,0.0009559999999999999
2012,0.271,0.00108
2013,0.304,0.00114
2014,0.242,0.00107
2015,0.249,0.00109
2016,0.256,0.00111
2017,0.248,0.00113
2018,0.258,0.00115