year,IPC1,IPC2,IPC4,IPCMAG
1850,0.000612,0.0008990000000000001,3.89e-07,3.969999999999999e-06
1851,0.000644,0.0009469999999999999,4.1e-07,4.18e-06
1852,0.000679,0.000998,4.32e-07,4.4e-06
1853,0.000716,0.0010500000000000002,4.55e-07,4.64e-06
1854,0.000756,0.00111,4.800000000000001e-07,4.9e-06
1855,0.0007970000000000001,0.00117,5.07e-07,5.1700000000000005e-06
1856,0.000841,0.00124,5.34e-07,5.45e-06
1857,0.000886,0.0013,5.63e-07,5.75e-06
1858,0.000933,0.0013700000000000001,5.93e-07,6.05e-06
1859,0.000982,0.0014399999999999999,6.24e-07,6.36e-06
1860,0.00103,0.00152,6.56e-07,6.6899999999999995e-06
1861,0.00108,0.00159,6.890000000000001e-07,7.0200000000000006e-06
1862,0.00114,0.0016699999999999998,7.23e-07,7.3800000000000005e-06
1863,0.0011899999999999999,0.00176,7.590000000000001e-07,7.75e-06
1864,0.00125,0.00184,7.97e-07,8.13e-06
1865,0.00132,0.0019299999999999999,8.37e-07,8.53e-06
1866,0.00138,0.0020299999999999997,8.78e-07,8.959999999999999e-06
1867,0.00145,0.00213,9.210000000000001e-07,9.4e-06
1868,0.00152,0.0022299999999999998,9.66e-07,9.849999999999999e-06
1869,0.00159,0.00234,1.01e-06,1.03e-05
1870,0.0016699999999999998,0.0024500000000000004,1.06e-06,1.08e-05
1871,0.00175,0.00257,1.1100000000000002e-06,1.1400000000000001e-05
1872,0.00184,0.0027,1.17e-06,1.1900000000000001e-05
1873,0.0019299999999999999,0.00283,1.2299999999999999e-06,1.25e-05
1874,0.0020299999999999997,0.00298,1.29e-06,1.31e-05
1875,0.00213,0.00312,1.35e-06,1.38e-05
1876,0.0022299999999999998,0.00328,1.42e-06,1.45e-05
1877,0.00234,0.0034300000000000003,1.49e-06,1.52e-05
1878,0.0024500000000000004,0.0036,1.5599999999999999e-06,1.59e-05
1879,0.00256,0.00376,1.6299999999999999e-06,1.66e-05
1880,0.00268,0.00393,1.6999999999999998e-06,1.73e-05
1881,0.00279,0.0040999999999999995,1.77e-06,1.8100000000000003e-05
1882,0.0029100000000000003,0.00428,1.85e-06,1.89e-05
1883,0.00304,0.0044599999999999996,1.93e-06,1.9699999999999998e-05
1884,0.00316,0.0046500000000000005,2.0100000000000002e-06,2.05e-05
1885,0.0033,0.00484,2.1e-06,2.14e-05
1886,0.0034300000000000003,0.00505,2.18e-06,2.23e-05
1887,0.0035800000000000003,0.00525,2.27e-06,2.3199999999999998e-05
1888,0.00372,0.00547,2.37e-06,2.41e-05
1889,0.00367,0.00539,2.33e-06,2.3800000000000003e-05
1890,0.0147,0.00554,9.32e-06,9.510000000000001e-05
1891,0.022,0.00554,1.4e-05,0.00014299999999999998
1892,0.187,0.00562,0.00011899999999999999,0.00121
1893,0.407,0.00571,0.000259,0.00264
1894,0.48,0.00575,0.000305,0.00311
1895,0.766,0.00587,0.00048699999999999997,0.00497
1896,0.861,0.00592,0.0005470000000000001,0.00558
1897,1.11,0.006030000000000001,0.000703,0.00718
1898,1.29,0.00611,0.00082,0.00836
1899,1.13,0.006030000000000001,0.0007149999999999999,0.00729
1900,1.21,0.00607,0.000769,0.00784
1901,2.24,0.00653,0.0014299999999999998,0.0145
1902,1.54,0.00622,0.000978,0.009980000000000001
1903,3.0,0.00688,0.00191,0.0195
1904,3.37,0.00705,0.00214,0.0218
1905,4.13,0.00739,0.00263,0.0268
1906,4.45,0.00754,0.00283,0.0289
1907,5.29,0.00792,0.0033599999999999997,0.0343
1908,5.49,0.00802,0.00349,0.0356
1909,5.99,0.00825,0.00381,0.038799999999999994
1910,6.11,0.00831,0.0038799999999999998,0.0396
1911,6.73,0.0086,0.00428,0.0436
1912,5.84,0.008230000000000001,0.0037099999999999998,0.037899999999999996
1913,5.9,0.008289999999999999,0.00375,0.038200000000000005
1914,6.02,0.00838,0.00382,0.039
1915,6.03,0.00843,0.00383,0.0391
1916,6.76,0.00881,0.0043,0.0439
1917,7.14,0.00902,0.00454,0.046299999999999994
1918,7.13,0.00906,0.00453,0.046200000000000005
1919,7.64,0.00934,0.004860000000000001,0.0495
1920,8.26,0.00965,0.00525,0.0536
1921,8.76,0.00991,0.00557,0.056799999999999996
1922,8.3,0.00974,0.00528,0.0538
1923,9.59,0.0104,0.0060999999999999995,0.062200000000000005
1924,10.6,0.0108,0.006730000000000001,0.0686
1925,11.1,0.0111,0.00704,0.0719
1926,11.1,0.0111,0.0070599999999999994,0.072
1927,12.9,0.012,0.00819,0.0836
1928,14.8,0.0129,0.00943,0.09620000000000001
1929,18.5,0.0872,0.011699999999999999,0.12
1930,18.0,0.0834,0.0114,0.117
1931,16.8,0.0793,0.0107,0.109
1932,16.5,0.0538,0.0105,0.107
1933,17.8,0.0508,0.011300000000000001,0.116
1934,19.2,0.0697,0.012199999999999999,0.124
1935,19.9,0.0846,0.0127,0.129
1936,21.7,0.0819,0.013800000000000002,0.141
1937,25.3,0.0897,0.0161,0.164
1938,26.7,0.0965,0.017,0.173
1939,29.1,0.104,0.0185,0.189
1940,28.7,0.0201,0.0183,0.186
1941,26.4,0.103,0.016800000000000002,0.171
1942,9.45,0.0832,0.00601,0.0613
1943,19.0,0.0756,0.0121,0.123
1944,8.77,0.0595,0.00557,0.0569
1945,3.81,0.046299999999999994,0.00242,0.0247
1946,1.35,0.0346,0.000855,0.00872
1947,4.05,0.0256,0.0025800000000000003,0.0263
1948,15.5,0.0487,0.00984,0.1
1949,21.9,0.0663,0.013900000000000001,0.142
1950,9.83,0.07590000000000001,0.00625,0.0637
1951,9.34,0.0927,0.00594,0.0606
1952,12.7,0.122,0.008039999999999999,0.08209999999999999
1953,13.0,0.139,0.00827,0.0843
1954,14.7,0.155,0.00933,0.0952
1955,20.8,0.176,0.0132,0.135
1956,21.7,0.198,0.013800000000000002,0.141
1957,22.3,0.272,0.014199999999999999,0.145
1958,22.1,0.323,0.014,0.143
1959,23.7,0.373,0.015099999999999999,0.154
1960,21.2,0.423,0.0135,0.137
1961,25.8,0.488,0.016399999999999998,0.167
1962,22.7,0.557,0.0144,0.147
1963,22.6,0.519,0.0144,0.147
1964,22.2,0.631,0.0141,0.144
1965,24.5,0.661,0.0156,0.159
1966,23.2,0.719,0.0148,0.15
1967,24.4,0.809,0.0155,0.158
1968,27.4,0.929,0.0174,0.177
1969,33.1,1.09,0.021,0.215
1970,35.5,1.01,0.0208,0.177
1971,38.7,0.998,0.0208,0.203
1972,43.0,1.08,0.0219,0.245
1973,48.7,1.25,0.023100000000000002,0.317
1974,50.8,1.5,0.024399999999999998,0.394
1975,53.4,1.69,0.0257,0.356
1976,60.9,1.97,0.027100000000000003,0.392
1977,81.0,2.95,0.0285,0.517
1978,92.0,5.09,0.03,0.584
1979,92.7,4.34,0.0316,0.675
1980,91.8,5.72,0.0332,1.01
1981,96.6,6.27,0.0351,1.05
1982,102.0,6.92,0.0371,1.2
1983,101.0,7.83,0.039299999999999995,1.18
1984,108.0,9.53,0.0415,1.42
1985,116.0,11.0,0.0438,1.5
1986,116.0,12.2,0.046200000000000005,1.56
1987,117.0,12.8,0.0487,1.72
1988,126.0,13.1,0.0512,1.85
1989,124.0,14.5,0.0538,1.76
1990,143.0,15.2,0.0565,1.88
1991,172.0,16.4,0.0594,1.84
1992,194.0,17.2,0.0625,1.96
1993,209.0,18.8,0.06570000000000001,1.89
1994,210.0,20.8,0.069,1.92
1995,213.0,22.5,0.0723,2.07
1996,241.0,24.3,0.07579999999999999,2.22
1997,265.0,26.5,0.0793,1.98
1998,203.0,23.3,0.0829,2.05
1999,230.0,23.9,0.0866,2.04
2000,249.0,29.1,0.0943,2.02
2001,279.0,31.2,0.0974,2.02
2002,289.0,32.2,0.101,2.29
2003,299.0,32.4,0.104,2.42
2004,321.0,33.8,0.107,2.51
2005,325.0,34.4,0.111,2.61
2006,328.0,35.6,0.114,2.49
2007,358.0,36.4,0.118,2.62
2008,397.0,37.9,0.121,2.69
2009,428.0,36.5,0.125,2.94
2010,409.0,36.8,0.129,2.77
2011,581.0,38.6,0.132,2.78
2012,611.0,40.7,0.136,2.81
2013,462.0,41.8,0.139,2.51
2014,435.0,42.6,0.143,2.68
2015,444.0,41.5,0.146,2.52
2016,447.0,45.7,0.15,2.58
2017,466.0,46.9,0.153,2.57
2018,512.0,47.5,0.157,2.55