year,IPC1,IPC2,IPC4
1850,2.75e-05,0.0,2.12e-06
1851,2.8899999999999998e-05,0.0,2.2300000000000002e-06
1852,3.05e-05,0.0,2.35e-06
1853,3.22e-05,0.0,2.48e-06
1854,3.39e-05,0.0,2.62e-06
1855,3.5799999999999996e-05,0.0,2.76e-06
1856,3.7699999999999995e-05,0.0,2.9099999999999997e-06
1857,3.9800000000000005e-05,0.0,3.07e-06
1858,4.19e-05,0.0,3.23e-06
1859,4.41e-05,0.0,3.3999999999999996e-06
1860,4.63e-05,0.0,3.5699999999999997e-06
1861,4.8599999999999995e-05,0.0,3.7499999999999997e-06
1862,5.11e-05,0.0,3.9399999999999995e-06
1863,5.36e-05,0.0,4.13e-06
1864,5.63e-05,0.0,4.34e-06
1865,5.91e-05,0.0,4.5599999999999995e-06
1866,6.2e-05,0.0,4.78e-06
1867,6.510000000000001e-05,0.0,5.02e-06
1868,6.819999999999999e-05,0.0,5.26e-06
1869,7.149999999999999e-05,0.0,5.51e-06
1870,7.5e-05,0.0,5.7800000000000006e-06
1871,7.86e-05,0.0,6.0600000000000004e-06
1872,8.25e-05,0.0,6.36e-06
1873,8.659999999999999e-05,0.0,6.68e-06
1874,9.09e-05,0.0,7.01e-06
1875,9.54e-05,0.0,7.36e-06
1876,0.0001,0.0,7.72e-06
1877,0.00010499999999999999,0.0,8.09e-06
1878,0.00011,0.0,8.47e-06
1879,0.000115,0.0,8.86e-06
1880,0.00011999999999999999,0.0,9.26e-06
1881,0.000125,0.0,9.67e-06
1882,0.000131,0.0,1.01e-05
1883,0.000136,0.0,1.0500000000000001e-05
1884,0.00014199999999999998,0.0,1.1e-05
1885,0.000148,0.0,1.1400000000000001e-05
1886,0.000154,0.0,1.1900000000000001e-05
1887,0.000161,0.0,1.24e-05
1888,0.00016700000000000002,0.0,1.29e-05
1889,0.000174,0.0,1.34e-05
1890,0.000191,0.0,1.47e-05
1891,0.00019800000000000002,0.0,1.53e-05
1892,0.000206,0.0,1.59e-05
1893,0.000214,0.0,1.65e-05
1894,0.000223,0.0,1.72e-05
1895,0.00023300000000000003,0.0,1.7999999999999997e-05
1896,0.000243,0.0,1.87e-05
1897,0.000253,0.0,1.95e-05
1898,0.000264,0.0,2.04e-05
1899,0.000275,0.0,2.12e-05
1900,0.000287,0.0,2.2100000000000002e-05
1901,0.0003,0.0,2.31e-05
1902,0.000314,0.0,2.42e-05
1903,0.00033,0.0,2.55e-05
1904,0.000347,0.0,2.6700000000000002e-05
1905,0.000364,0.0,2.81e-05
1906,0.000381,0.0,2.94e-05
1907,0.000397,0.0,3.06e-05
1908,0.00041299999999999996,0.0,3.18e-05
1909,0.000426,0.0,3.29e-05
1910,0.000438,0.0,3.3799999999999995e-05
1911,0.000448,0.0,3.4500000000000005e-05
1912,0.000457,0.0,3.52e-05
1913,0.000465,0.0,3.59e-05
1914,0.00047299999999999995,0.0,3.65e-05
1915,0.000481,0.0,3.71e-05
1916,0.000488,0.0,3.76e-05
1917,0.000495,0.0,3.82e-05
1918,0.000502,0.0,3.87e-05
1919,0.000509,0.0,3.93e-05
1920,0.000517,0.0,3.9800000000000005e-05
1921,0.000524,2.55e-07,4.04e-05
1922,0.000531,9.79e-07,4.09e-05
1923,0.000537,2.1099999999999997e-06,4.14e-05
1924,0.000544,3.58e-06,4.19e-05
1925,0.00055,5.3400000000000005e-06,4.24e-05
1926,0.0005570000000000001,7.3099999999999995e-06,4.29e-05
1927,0.0005639999999999999,9.43e-06,4.35e-05
1928,0.0005719999999999999,1.1599999999999999e-05,4.41e-05
1929,0.0005809999999999999,1.3899999999999999e-05,4.48e-05
1930,0.0005909999999999999,1.61e-05,4.5600000000000004e-05
1931,0.0006039999999999999,1.85e-05,4.65e-05
1932,0.000619,2.13e-05,4.77e-05
1933,0.0006360000000000001,2.44e-05,4.9000000000000005e-05
1934,0.000655,2.7799999999999998e-05,5.05e-05
1935,0.000675,3.14e-05,5.2e-05
1936,0.000696,3.51e-05,5.36e-05
1937,0.000717,3.88e-05,5.53e-05
1938,0.0007379999999999999,4.25e-05,5.69e-05
1939,0.000759,4.62e-05,5.8500000000000006e-05
1940,0.0007790000000000001,4.96e-05,5.9999999999999995e-05
1941,0.000796,5.28e-05,6.14e-05
1942,0.0008129999999999999,5.57e-05,6.27e-05
1943,0.000828,5.84e-05,6.379999999999999e-05
1944,0.000843,6.110000000000001e-05,6.500000000000001e-05
1945,0.000859,6.39e-05,6.62e-05
1946,0.000876,6.69e-05,6.75e-05
1947,0.0008950000000000001,7.02e-05,6.900000000000001e-05
1948,0.000916,7.4e-05,7.06e-05
1949,0.000941,7.84e-05,7.25e-05
1950,0.000969,8.350000000000001e-05,7.47e-05
1951,0.00101,9.070000000000001e-05,7.8e-05
1952,0.00107,0.000101,8.28e-05
1953,0.00115,0.000114,8.87e-05
1954,0.00124,0.000129,9.56e-05
1955,0.00134,0.000146,0.000103
1956,0.0014299999999999998,0.000163,0.000111
1957,0.0015300000000000001,0.00018099999999999998,0.000118
1958,0.00163,0.00019800000000000002,0.000126
1959,0.00171,0.000215,0.000132
1960,0.0017900000000000001,0.00023,0.00013800000000000002
1961,0.00185,0.000245,0.00014299999999999998
1962,0.0019199999999999998,0.000258,0.000148
1963,0.002,0.00027100000000000003,0.000154
1964,0.00207,0.00028399999999999996,0.00015900000000000002
1965,0.00213,0.000297,0.000164
1966,0.00219,0.000311,0.00016900000000000002
1967,0.00225,0.000325,0.00017299999999999998
1968,0.00229,0.00034,0.000176
1969,0.00231,0.000357,0.000178
1970,0.00239,0.00039,0.000262
1971,0.00239,0.000398,0.000262
1972,0.00239,0.00041099999999999996,0.000292
1973,0.00239,0.000423,0.000326
1974,0.00239,0.000434,0.000363
1975,0.00478,0.000449,0.000404
1976,0.00717,0.000443,0.000447
1977,0.00956,0.00045200000000000004,0.000494
1978,0.0143,0.000486,0.0005340000000000001
1979,0.019100000000000002,0.000496,0.000566
1980,0.0287,0.000512,0.000602
1981,0.031100000000000003,0.000518,0.000642
1982,0.031100000000000003,0.000541,0.0006850000000000001
1983,0.0334,0.0005480000000000001,0.000731
1984,0.038200000000000005,0.0006630000000000001,0.00078
1985,0.043,0.000623,0.0008259999999999999
1986,0.0526,0.000642,0.000858
1987,0.0526,0.000652,0.0008900000000000001
1988,0.0621,0.0006979999999999999,0.000923
1989,0.08120000000000001,0.000709,0.000955
1990,0.112,0.000728,0.000986
1991,0.1,0.000753,0.00101
1992,0.151,0.0007790000000000001,0.0010400000000000001
1993,0.129,0.000896,0.00106
1994,0.129,0.0009180000000000001,0.00109
1995,0.197,0.00114,0.00111
1996,0.258,0.00122,0.00115
1997,0.318,0.00116,0.0011899999999999999
1998,0.324,0.00127,0.00123
1999,0.446,0.0012900000000000001,0.00127
2000,0.496,0.0016,0.00133
2001,0.528,0.00149,0.0014199999999999998
2002,0.669,0.00174,0.00151
2003,0.605,0.0019199999999999998,0.00161
2004,0.781,0.00182,0.00172
2005,0.728,0.00172,0.00184
2006,0.91,0.0020299999999999997,0.00195
2007,0.947,0.00214,0.00202
2008,1.03,0.00209,0.0021000000000000003
2009,1.09,0.00211,0.00218
2010,1.16,0.0020099999999999996,0.00227
2011,1.23,0.00202,0.00263
2012,1.3,0.00202,0.0027400000000000002
2013,1.39,0.00184,0.00285
2014,1.44,0.00173,0.00296
2015,1.46,0.00172,0.00307
2016,1.48,0.00166,0.00323
2017,1.52,0.00161,0.0034
2018,1.56,0.00156,0.00357