year,IPC1,IPC2,IPC4
1850,0.0006969999999999999,3.1e-05,3.6900000000000004e-07
1851,0.000733,3.26e-05,3.88e-07
1852,0.000773,3.44e-05,4.09e-07
1853,0.000815,3.63e-05,4.32e-07
1854,0.00086,3.83e-05,4.56e-07
1855,0.000907,4.04e-05,4.81e-07
1856,0.000957,4.26e-05,5.07e-07
1857,0.00101,4.48e-05,5.34e-07
1858,0.00106,4.72e-05,5.62e-07
1859,0.0011200000000000001,4.97e-05,5.92e-07
1860,0.00117,5.22e-05,6.22e-07
1861,0.00123,5.4800000000000004e-05,6.53e-07
1862,0.0012900000000000001,5.76e-05,6.86e-07
1863,0.00136,6.05e-05,7.200000000000001e-07
1864,0.0014299999999999998,6.35e-05,7.56e-07
1865,0.0015,6.66e-05,7.93e-07
1866,0.00157,6.99e-05,8.33e-07
1867,0.00165,7.33e-05,8.729999999999999e-07
1868,0.00173,7.69e-05,9.16e-07
1869,0.00181,8.060000000000001e-05,9.600000000000001e-07
1870,0.0019,8.450000000000001e-05,1.01e-06
1871,0.00199,8.86e-05,1.06e-06
1872,0.00209,9.3e-05,1.1100000000000002e-06
1873,0.00219,9.76e-05,1.16e-06
1874,0.0023,0.000103,1.22e-06
1875,0.00242,0.000108,1.28e-06
1876,0.00254,0.00011300000000000001,1.34e-06
1877,0.00266,0.000118,1.41e-06
1878,0.00279,0.000124,1.48e-06
1879,0.0029100000000000003,0.00013000000000000002,1.5399999999999999e-06
1880,0.00304,0.000135,1.61e-06
1881,0.00318,0.00014099999999999998,1.68e-06
1882,0.00331,0.000147,1.76e-06
1883,0.00346,0.000154,1.83e-06
1884,0.0036,0.00016,1.91e-06
1885,0.00375,0.00016700000000000002,1.99e-06
1886,0.00391,0.000174,2.0699999999999997e-06
1887,0.004070000000000001,0.00018099999999999998,2.16e-06
1888,0.00424,0.000188,2.2399999999999997e-06
1889,0.00441,0.00019600000000000002,2.34e-06
1890,0.00492,0.000193,2.61e-06
1891,0.00509,0.000193,2.7e-06
1892,0.00528,0.000193,2.8e-06
1893,0.00549,0.000193,2.9099999999999997e-06
1894,0.005719999999999999,0.000193,3.0300000000000002e-06
1895,0.00597,0.000193,3.1600000000000002e-06
1896,0.00623,0.000193,3.3e-06
1897,0.00651,0.000193,3.45e-06
1898,0.0068,0.000193,3.6e-06
1899,0.00711,0.000193,3.76e-06
1900,0.0074199999999999995,0.000193,3.9300000000000005e-06
1901,0.00777,0.000193,4.11e-06
1902,0.00817,0.000193,4.33e-06
1903,0.00862,0.000193,4.57e-06
1904,0.0091,0.000194,4.82e-06
1905,0.00959,0.000194,5.0800000000000005e-06
1906,0.0101,0.000194,5.3400000000000005e-06
1907,0.0106,0.000194,5.590000000000001e-06
1908,0.011,0.000194,5.83e-06
1909,0.0114,0.000195,6.040000000000001e-06
1910,0.011699999999999999,0.000195,6.22e-06
1911,0.012,0.00019600000000000002,6.37e-06
1912,0.0123,0.00019600000000000002,6.5e-06
1913,0.0125,0.00019800000000000002,6.62e-06
1914,0.0127,0.000199,6.72e-06
1915,0.0129,0.0002,6.82e-06
1916,0.013099999999999999,0.000202,6.92e-06
1917,0.013300000000000001,0.000204,7.04e-06
1918,0.0135,0.000205,7.17e-06
1919,0.013800000000000002,0.000207,7.32e-06
1920,0.0141,0.000208,7.49e-06
1921,0.0146,0.00020999999999999998,7.73e-06
1922,0.0152,0.000211,8.040000000000001e-06
1923,0.0159,0.000212,8.41e-06
1924,0.0167,0.000213,8.82e-06
1925,0.0175,0.000214,9.270000000000001e-06
1926,0.0184,0.000215,9.75e-06
1927,0.0193,0.000217,1.02e-05
1928,0.0202,0.00021799999999999999,1.07e-05
1929,0.0211,0.00022,1.12e-05
1930,0.0219,0.000222,1.1599999999999999e-05
1931,0.022699999999999998,0.000224,1.2e-05
1932,0.0237,0.000225,1.26e-05
1933,0.0247,0.000228,1.31e-05
1934,0.0257,0.00023,1.3599999999999999e-05
1935,0.0268,0.00023300000000000003,1.4200000000000001e-05
1936,0.0277,0.000236,1.47e-05
1937,0.0285,0.00023999999999999998,1.5100000000000001e-05
1938,0.0291,0.000244,1.54e-05
1939,0.0295,0.00025,1.56e-05
1940,0.0297,0.000256,1.57e-05
1941,0.0294,0.00027100000000000003,1.56e-05
1942,0.0287,0.000304,1.52e-05
1943,0.0277,0.000354,1.47e-05
1944,0.0265,0.000419,1.41e-05
1945,0.0252,0.0005,1.34e-05
1946,0.023899999999999998,0.000594,1.2699999999999999e-05
1947,0.022699999999999998,0.000703,1.2e-05
1948,0.0217,0.000824,1.15e-05
1949,0.0409,0.000958,2.16e-05
1950,0.055,0.0011,2.91e-05
1951,0.062299999999999994,0.00132,3.3e-05
1952,0.0843,0.00165,4.4699999999999996e-05
1953,0.0953,0.0021000000000000003,5.05e-05
1954,0.0953,0.00265,5.05e-05
1955,0.128,0.00329,6.8e-05
1956,0.128,0.004030000000000001,6.8e-05
1957,0.147,0.004849999999999999,7.77e-05
1958,0.147,0.00574,7.77e-05
1959,0.161,0.0067,8.55e-05
1960,0.18,0.00771,9.520000000000001e-05
1961,0.202,0.00888,0.000107
1962,0.198,0.0103,0.00010499999999999999
1963,0.257,0.0121,0.000136
1964,0.268,0.0141,0.00014199999999999998
1965,0.304,0.016399999999999998,0.000161
1966,0.341,0.0189,0.00018099999999999998
1967,0.436,0.0218,0.000231
1968,0.502,0.0249,0.000266
1969,0.557,0.028300000000000002,0.00029499999999999996
1970,0.693,0.0254,0.000245
1971,0.825,0.0259,0.00026900000000000003
1972,1.27,0.0269,0.000287
1973,1.35,0.027800000000000002,0.000306
1974,1.59,0.028300000000000002,0.000317
1975,1.53,0.0295,0.000332
1976,1.57,0.028,0.00034100000000000005
1977,1.58,0.028399999999999998,0.00035499999999999996
1978,1.68,0.0316,0.000379
1979,1.8,0.0319,0.000393
1980,1.83,0.0329,0.0004
1981,1.93,0.032799999999999996,0.000408
1982,1.95,0.0346,0.000416
1983,2.01,0.0341,0.00042699999999999997
1984,2.05,0.0349,0.000433
1985,2.13,0.0335,0.00044500000000000003
1986,2.06,0.034,0.00046
1987,2.34,0.0348,0.00047099999999999996
1988,2.2,0.0362,0.000484
1989,2.04,0.0368,0.000489
1990,2.15,0.037700000000000004,0.000491
1991,2.07,0.038700000000000005,0.000516
1992,2.06,0.039799999999999995,0.0005510000000000001
1993,2.0,0.0407,0.000596
1994,2.19,0.0405,0.000619
1995,2.06,0.042,0.000622
1996,2.19,0.0434,0.00065
1997,2.62,0.0446,0.000651
1998,3.57,0.0455,0.000652
1999,2.57,0.0465,0.00068
2000,2.96,0.048,0.000687
2001,3.35,0.0484,0.0006969999999999999
2002,3.68,0.0496,0.0007059999999999999
2003,4.1,0.0512,0.000721
2004,4.71,0.0533,0.0007379999999999999
2005,5.01,0.0545,0.000758
2006,5.09,0.0557,0.000766
2007,6.61,0.056299999999999996,0.00078
2008,5.58,0.055799999999999995,0.000794
2009,5.28,0.0555,0.000808
2010,4.72,0.154,0.000823
2011,5.28,0.154,0.000837
2012,5.03,0.154,0.000851
2013,6.14,0.155,0.000851
2014,6.51,0.154,0.000851
2015,6.7,0.153,0.000851
2016,7.33,0.163,0.000857
2017,7.47,0.171,0.000862
2018,10.6,0.171,0.000868