year,IPC1,IPC2,IPC4,IPCMAG
1850,0.0074,0.000852,7.32e-06,1.23e-05
1851,0.00779,0.000897,7.7e-06,1.3e-05
1852,0.00821,0.000945,8.12e-06,1.3700000000000001e-05
1853,0.00866,0.000997,8.56e-06,1.44e-05
1854,0.00914,0.0010500000000000002,9.03e-06,1.52e-05
1855,0.009640000000000001,0.00111,9.53e-06,1.61e-05
1856,0.010199999999999999,0.00117,1e-05,1.7e-05
1857,0.0107,0.00123,1.06e-05,1.7899999999999998e-05
1858,0.011300000000000001,0.0013,1.12e-05,1.88e-05
1859,0.0119,0.0013700000000000001,1.17e-05,1.98e-05
1860,0.0125,0.0014399999999999999,1.23e-05,2.0799999999999997e-05
1861,0.013099999999999999,0.00151,1.29e-05,2.18e-05
1862,0.013800000000000002,0.00158,1.3599999999999999e-05,2.29e-05
1863,0.0144,0.00166,1.43e-05,2.41e-05
1864,0.0152,0.00174,1.4999999999999999e-05,2.53e-05
1865,0.0159,0.00183,1.57e-05,2.65e-05
1866,0.0167,0.0019199999999999998,1.65e-05,2.79e-05
1867,0.0175,0.00202,1.73e-05,2.92e-05
1868,0.0184,0.00211,1.8200000000000002e-05,3.06e-05
1869,0.0193,0.00222,1.9e-05,3.2099999999999994e-05
1870,0.0202,0.00232,2e-05,3.37e-05
1871,0.0212,0.00244,2.09e-05,3.53e-05
1872,0.0222,0.00256,2.2e-05,3.7e-05
1873,0.0233,0.00268,2.31e-05,3.89e-05
1874,0.0245,0.00282,2.42e-05,4.08e-05
1875,0.0257,0.00296,2.5399999999999997e-05,4.29e-05
1876,0.027,0.0031,2.66e-05,4.4999999999999996e-05
1877,0.028300000000000002,0.00325,2.79e-05,4.71e-05
1878,0.0296,0.0034100000000000003,2.93e-05,4.93e-05
1879,0.031,0.0035600000000000002,3.06e-05,5.16e-05
1880,0.032299999999999995,0.00372,3.2e-05,5.39e-05
1881,0.0338,0.0038799999999999998,3.34e-05,5.63e-05
1882,0.0352,0.00405,3.48e-05,5.8700000000000004e-05
1883,0.0367,0.00422,3.63e-05,6.12e-05
1884,0.038299999999999994,0.0044,3.78e-05,6.379999999999999e-05
1885,0.0399,0.0045899999999999995,3.9399999999999995e-05,6.65e-05
1886,0.0415,0.00478,4.1e-05,6.92e-05
1887,0.0432,0.00497,4.27e-05,7.209999999999999e-05
1888,0.045,0.00518,4.45e-05,7.51e-05
1889,0.0469,0.00539,4.63e-05,7.82e-05
1890,0.00733,0.00531,7.25e-06,1.22e-05
1891,0.0183,0.00531,1.8100000000000003e-05,3.06e-05
1892,0.047700000000000006,0.00531,4.71e-05,7.950000000000001e-05
1893,0.011,0.00531,1.09e-05,1.83e-05
1894,0.047700000000000006,0.00531,4.71e-05,7.950000000000001e-05
1895,0.11,0.00531,0.00010899999999999999,0.000183
1896,0.125,0.00531,0.000123,0.000208
1897,0.0917,0.00531,9.06e-05,0.000153
1898,0.128,0.00531,0.000127,0.000214
1899,0.121,0.00531,0.00011999999999999999,0.000202
1900,0.0587,0.00531,5.8e-05,9.779999999999999e-05
1901,0.047700000000000006,0.00531,4.71e-05,7.950000000000001e-05
1902,0.0513,0.00531,5.07e-05,8.56e-05
1903,0.0513,0.00532,5.07e-05,8.56e-05
1904,0.033,0.00532,3.26e-05,5.5e-05
1905,0.040299999999999996,0.00532,3.99e-05,6.73e-05
1906,0.0367,0.00533,3.6200000000000006e-05,6.110000000000001e-05
1907,0.088,0.00534,8.7e-05,0.000147
1908,0.0917,0.00535,9.06e-05,0.000153
1909,0.169,0.00535,0.00016700000000000002,0.00028100000000000005
1910,0.235,0.00536,0.000232,0.000391
1911,0.0,0.00538,0.0,0.0
1912,0.0183,0.0054,1.8100000000000003e-05,3.06e-05
1913,0.062299999999999994,0.00543,6.16e-05,0.000104
1914,0.147,0.00547,0.000145,0.000245
1915,0.205,0.00551,0.000203,0.000342
1916,0.55,0.00555,0.000544,0.0009170000000000001
1917,0.649,0.0056,0.000641,0.00108
1918,0.671,0.0056500000000000005,0.0006630000000000001,0.0011200000000000001
1919,0.77,0.005690000000000001,0.000761,0.00128
1920,1.11,0.005730000000000001,0.0011,0.00185
1921,1.42,0.0057599999999999995,0.0014,0.00237
1922,2.01,0.00579,0.00198,0.0033399999999999997
1923,2.59,0.00583,0.00256,0.00431
1924,2.84,0.005860000000000001,0.00281,0.004730000000000001
1925,2.96,0.005889999999999999,0.0029300000000000003,0.004940000000000001
1926,3.4,0.00592,0.0033599999999999997,0.00567
1927,3.38,0.00596,0.0033399999999999997,0.00564
1928,3.81,0.006,0.00377,0.00635
1929,4.12,0.00604,0.004070000000000001,0.00687
1930,3.67,0.00609,0.00363,0.0061200000000000004
1931,2.71,0.00614,0.00268,0.00452
1932,1.8,0.0062,0.0017800000000000001,0.003
1933,1.59,0.00626,0.00157,0.00265
1934,1.73,0.00632,0.00171,0.00289
1935,1.81,0.0064,0.0017900000000000001,0.0030099999999999997
1936,2.05,0.00649,0.0020299999999999997,0.00342
1937,2.35,0.0065899999999999995,0.00232,0.00391
1938,1.91,0.006719999999999999,0.00189,0.00319
1939,1.71,0.006860000000000001,0.0016899999999999999,0.0028399999999999996
1940,2.57,0.007030000000000001,0.00254,0.00429
1941,2.18,0.00745,0.00216,0.00364
1942,0.66,0.00836,0.000652,0.0011
1943,1.32,0.009720000000000001,0.0013,0.0022
1944,1.1,0.0115,0.00109,0.00184
1945,0.612,0.013699999999999999,0.000605,0.00102
1946,0.605,0.016300000000000002,0.000598,0.00101
1947,0.689,0.0193,0.0006810000000000001,0.00115
1948,1.16,0.022699999999999998,0.00114,0.0019299999999999999
1949,1.22,0.0263,0.00121,0.00204
1950,3.56,0.0303,0.00352,0.00594
1951,5.12,0.0362,0.00507,0.00855
1952,6.28,0.060399999999999995,0.00621,0.0105
1953,6.42,0.0721,0.00635,0.0107
1954,6.92,0.116,0.00684,0.0115
1955,7.34,0.145,0.00726,0.012199999999999999
1956,7.48,0.162,0.00739,0.0125
1957,3.47,0.188,0.00342,0.00578
1958,3.78,0.212,0.0037400000000000003,0.00631
1959,3.09,0.279,0.0030600000000000002,0.0051600000000000005
1960,4.07,0.354,0.004019999999999999,0.0067800000000000004
1961,4.52,0.408,0.00447,0.007549999999999999
1962,4.62,0.444,0.00457,0.0077
1963,5.65,0.51,0.0055899999999999995,0.00943
1964,7.18,0.616,0.0070999999999999995,0.012
1965,8.02,0.817,0.00792,0.0134
1966,9.42,0.942,0.00931,0.0157
1967,9.72,1.01,0.009609999999999999,0.0162
1968,10.1,1.15,0.00996,0.016800000000000002
1969,9.68,1.26,0.00956,0.0161
1970,14.1,1.26,0.0105,0.0525
1971,16.1,1.35,0.0105,0.0624
1972,17.3,1.4,0.011,0.06620000000000001
1973,16.9,1.5,0.0115,0.098
1974,18.4,1.54,0.0121,0.0702
1975,18.7,1.6,0.0127,0.0881
1976,23.0,1.79,0.013300000000000001,0.102
1977,21.7,2.04,0.013900000000000001,0.0886
1978,22.1,2.3,0.0146,0.107
1979,26.1,2.39,0.015300000000000001,0.158
1980,26.8,2.43,0.016,0.11
1981,29.4,2.7,0.0167,0.152
1982,29.0,2.87,0.0174,0.175
1983,36.4,2.95,0.0182,0.201
1984,33.0,3.3,0.019,0.331
1985,34.7,3.4,0.0198,0.303
1986,38.2,4.04,0.0207,0.313
1987,39.1,4.06,0.0217,0.311
1988,40.8,4.32,0.022699999999999998,0.359
1989,47.5,4.91,0.0238,0.498
1990,53.7,5.55,0.0248,0.81
1991,64.9,5.86,0.0259,0.851
1992,71.1,5.88,0.0272,0.53
1993,87.3,6.27,0.0286,0.505
1994,89.1,6.92,0.030100000000000002,0.699
1995,116.0,7.2,0.0316,0.503
1996,119.0,7.85,0.033100000000000004,0.568
1997,118.0,8.34,0.0347,0.744
1998,109.0,8.73,0.0364,0.913
1999,103.0,10.9,0.0381,0.892
2000,120.0,14.1,0.0417,0.838
2001,129.0,12.5,0.0433,0.808
2002,127.0,17.8,0.0448,0.887
2003,150.0,19.2,0.0464,1.07
2004,156.0,19.0,0.048,1.21
2005,166.0,19.4,0.0496,1.22
2006,159.0,20.7,0.0512,1.3
2007,175.0,20.3,0.0528,1.32
2008,194.0,22.2,0.0545,1.35
2009,189.0,20.8,0.056100000000000004,1.43
2010,209.0,19.0,0.0578,1.44
2011,210.0,18.8,0.0595,1.51
2012,208.0,19.8,0.061200000000000004,1.58
2013,226.0,21.3,0.0629,1.62
2014,232.0,22.4,0.0645,1.57
2015,236.0,22.2,0.06620000000000001,1.43
2016,240.0,22.4,0.0678,1.48
2017,230.0,22.3,0.0695,1.49
2018,235.0,22.4,0.0713,1.51