year,IPC1,IPC2
1850,0.000294,8.76e-06
1851,0.00031,9.23e-06
1852,0.000326,9.72e-06
1853,0.00034399999999999996,1.03e-05
1854,0.000363,1.08e-05
1855,0.000383,1.1400000000000001e-05
1856,0.000404,1.2e-05
1857,0.000426,1.2699999999999999e-05
1858,0.000448,1.34e-05
1859,0.000472,1.41e-05
1860,0.000496,1.48e-05
1861,0.000521,1.55e-05
1862,0.0005470000000000001,1.63e-05
1863,0.000574,1.7100000000000002e-05
1864,0.000603,1.7999999999999997e-05
1865,0.000633,1.88e-05
1866,0.000664,1.98e-05
1867,0.000696,2.07e-05
1868,0.00073,2.18e-05
1869,0.000766,2.2800000000000002e-05
1870,0.0008020000000000001,2.39e-05
1871,0.000841,2.51e-05
1872,0.000883,2.63e-05
1873,0.0009270000000000001,2.76e-05
1874,0.000973,2.9e-05
1875,0.00102,3.04e-05
1876,0.00107,3.1899999999999996e-05
1877,0.0011200000000000001,3.35e-05
1878,0.0011799999999999998,3.5000000000000004e-05
1879,0.00123,3.6700000000000004e-05
1880,0.0012900000000000001,3.83e-05
1881,0.00134,4e-05
1882,0.0014,4.1700000000000004e-05
1883,0.00146,4.35e-05
1884,0.00152,4.53e-05
1885,0.00158,4.72e-05
1886,0.00165,4.92e-05
1887,0.00172,5.1200000000000004e-05
1888,0.0017900000000000001,5.33e-05
1889,0.00186,5.55e-05
1890,0.0020299999999999997,5.4600000000000006e-05
1891,0.00211,5.4600000000000006e-05
1892,0.00219,5.4600000000000006e-05
1893,0.00228,5.4600000000000006e-05
1894,0.00237,5.4600000000000006e-05
1895,0.00246,5.4600000000000006e-05
1896,0.00256,5.4600000000000006e-05
1897,0.00267,5.4600000000000006e-05
1898,0.00278,5.4600000000000006e-05
1899,0.00289,5.4600000000000006e-05
1900,0.0030099999999999997,5.4600000000000006e-05
1901,0.00314,5.4600000000000006e-05
1902,0.00329,5.47e-05
1903,0.0034500000000000004,5.47e-05
1904,0.00363,5.47e-05
1905,0.0038,5.47e-05
1906,0.0039700000000000004,5.4800000000000004e-05
1907,0.00414,5.4800000000000004e-05
1908,0.00429,5.49e-05
1909,0.00442,5.49e-05
1910,0.00453,5.5e-05
1911,0.00461,5.63e-05
1912,0.004690000000000001,5.99e-05
1913,0.0047599999999999995,6.54e-05
1914,0.0048200000000000005,7.27e-05
1915,0.00488,8.13e-05
1916,0.004940000000000001,9.1e-05
1917,0.005,0.000102
1918,0.005059999999999999,0.00011300000000000001
1919,0.00513,0.000124
1920,0.00521,0.000135
1921,0.00528,0.000147
1922,0.00536,0.00016
1923,0.00544,0.000174
1924,0.00552,0.00019
1925,0.0056,0.000207
1926,0.005690000000000001,0.000225
1927,0.00579,0.000244
1928,0.005900000000000001,0.000265
1929,0.006030000000000001,0.000287
1930,0.00617,0.00031
1931,0.00635,0.000333
1932,0.0065899999999999995,0.000358
1933,0.00687,0.000384
1934,0.0072,0.00041299999999999996
1935,0.007549999999999999,0.000444
1936,0.007940000000000001,0.000479
1937,0.00834,0.000517
1938,0.00875,0.0005600000000000001
1939,0.00916,0.000608
1940,0.00957,0.000661
1941,0.009980000000000001,0.000731
1942,0.0104,0.0008269999999999999
1943,0.0108,0.000945
1944,0.011300000000000001,0.00108
1945,0.011699999999999999,0.00123
1946,0.012199999999999999,0.0014
1947,0.0127,0.00157
1948,0.013300000000000001,0.00174
1949,0.0152,0.0019199999999999998
1950,0.011,0.00209
1951,0.0257,0.00226
1952,0.0257,0.0024300000000000003
1953,0.0293,0.00262
1954,0.033,0.0028
1955,0.0367,0.003
1956,0.0293,0.00321
1957,0.044,0.0034300000000000003
1958,0.047700000000000006,0.00366
1959,0.0367,0.00391
1960,0.040299999999999996,0.00418
1961,0.044,0.0044599999999999996
1962,0.047700000000000006,0.0047599999999999995
1963,0.066,0.00507
1964,0.0843,0.00541
1965,0.121,0.00578
1966,0.139,0.00619
1967,0.088,0.00663
1968,0.121,0.0071200000000000005
1969,0.0843,0.00766
1970,0.139,0.005900000000000001
1971,0.161,0.00592
1972,0.191,0.0067
1973,0.18,0.006889999999999999
1974,0.194,0.00704
1975,0.198,0.0062900000000000005
1976,0.198,0.00449
1977,0.198,0.00477
1978,0.202,0.0035600000000000002
1979,0.363,0.00461
1980,0.348,0.00417
1981,0.301,0.00348
1982,0.348,0.00444
1983,0.348,0.0028
1984,0.352,0.0022
1985,0.359,0.00216
1986,0.378,0.0022299999999999998
1987,0.389,0.0046500000000000005
1988,0.348,0.00471
1989,0.389,0.00905
1990,0.323,0.00816
1991,0.312,0.010199999999999999
1992,0.312,0.00869
1993,0.312,0.00858
1994,0.304,0.00833
1995,0.304,0.008400000000000001
1996,0.312,0.00828
1997,0.327,0.0081
1998,0.316,0.00443
1999,0.316,0.00452
2000,0.342,0.004200000000000001
2001,0.369,0.00381
2002,0.402,0.00373
2003,0.425,0.00478
2004,0.412,0.00424
2005,0.42,0.0038799999999999998
2006,0.416,0.00346
2007,0.467,0.00413
2008,0.502,0.00279
2009,0.465,0.0030299999999999997
2010,0.52,0.00297
2011,0.476,0.0030800000000000003
2012,0.52,0.0858
2013,0.537,0.0597
2014,0.548,0.139
2015,0.568,0.147
2016,0.57,0.147
2017,0.611,0.147
2018,0.642,0.147