year,IPC1,IPC2,IPC4,IPCMAG
1850,0.00363,1.33e-05,9.64e-07,0.00027600000000000004
1851,0.00382,1.4e-05,1.02e-06,0.00029099999999999997
1852,0.004030000000000001,1.48e-05,1.07e-06,0.000306
1853,0.00425,1.56e-05,1.13e-06,0.000323
1854,0.0044800000000000005,1.65e-05,1.19e-06,0.00034100000000000005
1855,0.004730000000000001,1.74e-05,1.26e-06,0.00035999999999999997
1856,0.0049900000000000005,1.83e-05,1.32e-06,0.000379
1857,0.00526,1.93e-05,1.4e-06,0.0004
1858,0.00553,2.03e-05,1.47e-06,0.000421
1859,0.0058200000000000005,2.14e-05,1.55e-06,0.000443
1860,0.0061200000000000004,2.2499999999999998e-05,1.62e-06,0.000465
1861,0.00643,2.36e-05,1.71e-06,0.000489
1862,0.00675,2.48e-05,1.79e-06,0.000513
1863,0.00709,2.6e-05,1.88e-06,0.000539
1864,0.00744,2.7300000000000003e-05,1.98e-06,0.000566
1865,0.007809999999999999,2.87e-05,2.0699999999999997e-06,0.000594
1866,0.00819,3.01e-05,2.18e-06,0.000623
1867,0.00859,3.16e-05,2.2799999999999998e-06,0.0006540000000000001
1868,0.00901,3.31e-05,2.39e-06,0.0006860000000000001
1869,0.00945,3.47e-05,2.51e-06,0.000719
1870,0.0099,3.6400000000000004e-05,2.63e-06,0.000753
1871,0.0104,3.82e-05,2.76e-06,0.00079
1872,0.0109,4e-05,2.8900000000000003e-06,0.000829
1873,0.0114,4.2000000000000004e-05,3.04e-06,0.00087
1874,0.012,4.41e-05,3.19e-06,0.000914
1875,0.0126,4.63e-05,3.35e-06,0.000959
1876,0.0132,4.8599999999999995e-05,3.5100000000000003e-06,0.00101
1877,0.013900000000000001,5.0900000000000004e-05,3.68e-06,0.0010500000000000002
1878,0.0145,5.33e-05,3.86e-06,0.0011
1879,0.0152,5.58e-05,4.0299999999999995e-06,0.00116
1880,0.0159,5.83e-05,4.21e-06,0.00121
1881,0.0166,6.09e-05,4.4e-06,0.00126
1882,0.0173,6.35e-05,4.59e-06,0.00131
1883,0.018,6.62e-05,4.78e-06,0.0013700000000000001
1884,0.0188,6.900000000000001e-05,4.98e-06,0.0014299999999999998
1885,0.019600000000000003,7.18e-05,5.19e-06,0.00149
1886,0.020399999999999998,7.48e-05,5.41e-06,0.00155
1887,0.0212,7.79e-05,5.6299999999999995e-06,0.00161
1888,0.0221,8.11e-05,5.86e-06,0.0016799999999999999
1889,0.023,8.450000000000001e-05,6.11e-06,0.00175
1890,0.0251,8.319999999999999e-05,6.67e-06,0.00191
1891,0.026,8.319999999999999e-05,6.910000000000001e-06,0.00198
1892,0.027,8.319999999999999e-05,7.18e-06,0.00206
1893,0.0281,8.319999999999999e-05,7.46e-06,0.00214
1894,0.0292,8.319999999999999e-05,7.76e-06,0.00222
1895,0.0304,8.319999999999999e-05,8.07e-06,0.00231
1896,0.0317,8.319999999999999e-05,8.41e-06,0.0024100000000000002
1897,0.033,8.319999999999999e-05,8.750000000000001e-06,0.0025099999999999996
1898,0.0343,8.319999999999999e-05,9.119999999999999e-06,0.00261
1899,0.0357,8.319999999999999e-05,9.49e-06,0.00272
1900,0.037200000000000004,8.319999999999999e-05,9.87e-06,0.00283
1901,0.038799999999999994,8.319999999999999e-05,1.03e-05,0.0029500000000000004
1902,0.040600000000000004,8.319999999999999e-05,1.08e-05,0.00309
1903,0.0426,8.319999999999999e-05,1.1299999999999999e-05,0.0032400000000000003
1904,0.044700000000000004,8.319999999999999e-05,1.1900000000000001e-05,0.0034
1905,0.0469,8.33e-05,1.25e-05,0.00357
1906,0.049,8.340000000000001e-05,1.3e-05,0.00373
1907,0.051,8.340000000000001e-05,1.3599999999999999e-05,0.0038799999999999998
1908,0.052899999999999996,8.350000000000001e-05,1.4e-05,0.004019999999999999
1909,0.0545,8.36e-05,1.45e-05,0.00415
1910,0.0559,8.37e-05,1.48e-05,0.00425
1911,0.0569,8.57e-05,1.5100000000000001e-05,0.00433
1912,0.0579,9.11e-05,1.54e-05,0.0044
1913,0.0588,9.96e-05,1.56e-05,0.00447
1914,0.0595,0.000111,1.58e-05,0.00453
1915,0.0603,0.000124,1.6e-05,0.0045899999999999995
1916,0.061,0.00013900000000000002,1.62e-05,0.00464
1917,0.061700000000000005,0.000155,1.6400000000000002e-05,0.0047
1918,0.0625,0.000171,1.66e-05,0.00475
1919,0.0633,0.000188,1.68e-05,0.0048200000000000005
1920,0.0643,0.000205,1.7100000000000002e-05,0.004889999999999999
1921,0.06520000000000001,0.000223,1.73e-05,0.00496
1922,0.06620000000000001,0.000243,1.76e-05,0.005030000000000001
1923,0.06709999999999999,0.000265,1.78e-05,0.0050999999999999995
1924,0.0681,0.000289,1.8100000000000003e-05,0.00518
1925,0.0691,0.000315,1.84e-05,0.00526
1926,0.0702,0.00034300000000000004,1.87e-05,0.00534
1927,0.0715,0.000372,1.9e-05,0.00544
1928,0.0728,0.00040300000000000004,1.93e-05,0.00554
1929,0.07440000000000001,0.000437,1.98e-05,0.00566
1930,0.0761,0.00047099999999999996,2.02e-05,0.00579
1931,0.07840000000000001,0.000507,2.0799999999999997e-05,0.00596
1932,0.0813,0.000545,2.16e-05,0.00618
1933,0.0848,0.000585,2.2499999999999998e-05,0.00645
1934,0.0888,0.000628,2.36e-05,0.0067599999999999995
1935,0.0932,0.0006760000000000001,2.48e-05,0.00709
1936,0.098,0.000728,2.6e-05,0.00745
1937,0.103,0.000787,2.7300000000000003e-05,0.00783
1938,0.108,0.000852,2.87e-05,0.00822
1939,0.113,0.000925,2.9999999999999997e-05,0.0086
1940,0.118,0.00101,3.14e-05,0.00899
1941,0.123,0.00111,3.27e-05,0.00937
1942,0.128,0.00126,3.4099999999999995e-05,0.00976
1943,0.133,0.0014399999999999999,3.54e-05,0.010199999999999999
1944,0.139,0.00165,3.69e-05,0.0106
1945,0.145,0.00188,3.84e-05,0.011
1946,0.151,0.00212,4e-05,0.0115
1947,0.157,0.0023799999999999997,4.1700000000000004e-05,0.0119
1948,0.164,0.00265,4.35e-05,0.0125
1949,0.17,0.00292,4.51e-05,0.0129
1950,0.198,0.00318,5.26e-05,0.015099999999999999
1951,0.139,0.00344,3.7e-05,0.0106
1952,0.176,0.0037099999999999998,4.67e-05,0.0134
1953,0.187,0.00398,4.97e-05,0.014199999999999999
1954,0.187,0.0042699999999999995,4.97e-05,0.014199999999999999
1955,0.128,0.00457,3.4099999999999995e-05,0.00976
1956,0.216,0.00488,5.75e-05,0.0165
1957,0.22,0.00522,5.84e-05,0.0167
1958,0.213,0.00558,5.6500000000000005e-05,0.0162
1959,0.224,0.00596,5.94e-05,0.017
1960,0.18,0.00637,4.77e-05,0.013699999999999999
1961,0.187,0.00679,4.97e-05,0.014199999999999999
1962,0.253,0.00725,6.72e-05,0.0192
1963,0.205,0.007719999999999999,5.4499999999999997e-05,0.0156
1964,0.308,0.00824,8.18e-05,0.023399999999999997
1965,0.304,0.0088,8.08e-05,0.0232
1966,0.275,0.00942,7.3e-05,0.0209
1967,0.499,0.0101,0.000132,0.037899999999999996
1968,0.638,0.0108,0.00016900000000000002,0.0485
1969,0.576,0.011699999999999999,0.000153,0.0438
1970,0.499,0.0111,0.000131,0.029
1971,0.396,0.011300000000000001,0.000131,0.0299
1972,0.693,0.011800000000000001,0.000136,0.0453
1973,0.678,0.0124,0.00013700000000000002,0.0365
1974,0.693,0.009720000000000001,0.00013800000000000002,0.038299999999999994
1975,0.59,0.0126,0.00014000000000000001,0.0295
1976,0.62,0.0127,0.00014199999999999998,0.011
1977,0.642,0.0129,0.00014299999999999998,0.0176
1978,0.631,0.0136,0.000145,0.00484
1979,0.66,0.013800000000000002,0.000146,0.0061600000000000005
1980,0.594,0.0132,0.000148,0.00967
1981,0.543,0.013300000000000001,0.000149,0.0123
1982,0.502,0.0134,0.00015,0.0114
1983,0.594,0.0135,0.00015,0.0136
1984,0.623,0.0135,0.000153,0.0189
1985,0.708,0.0136,0.000155,0.0145
1986,0.799,0.013699999999999999,0.000158,0.015
1987,0.931,0.013699999999999999,0.00016,0.0158
1988,0.854,0.013800000000000002,0.000162,0.0114
1989,1.05,0.013900000000000001,0.000165,0.0158
1990,1.46,0.013699999999999999,0.00016700000000000002,0.0128
1991,1.53,0.013800000000000002,0.00016900000000000002,0.00924
1992,1.71,0.013900000000000001,0.000171,0.00924
1993,1.78,0.0152,0.00017299999999999998,0.009519999999999999
1994,1.62,0.0144,0.000175,0.0101
1995,1.83,0.0143,0.000182,0.0107
1996,1.95,0.0143,0.000157,0.011
1997,2.0,0.0144,0.000132,0.0074800000000000005
1998,2.17,0.0145,0.000107,0.00634
1999,2.43,0.0146,8.15e-05,0.00552
2000,2.69,0.0147,5.62e-05,0.00501
2001,2.86,0.0148,5.5e-05,0.00484
2002,2.89,0.015300000000000001,5.57e-05,0.0128
2003,3.06,0.0161,5.18e-05,0.00598
2004,3.09,0.0179,5.18e-05,0.00554
2005,3.29,0.0209,5.18e-05,0.00511
2006,3.63,0.0209,5.19e-05,0.00468
2007,3.69,0.0222,5.2e-05,0.00424
2008,3.77,0.0242,5.21e-05,0.00381
2009,3.71,0.0184,5.21e-05,0.00337
2010,3.92,0.0174,5.22e-05,0.00294
2011,3.92,0.0209,5.22e-05,0.0025
2012,3.97,0.0224,5.21e-05,0.00207
2013,4.07,0.022699999999999998,5.21e-05,0.00163
2014,4.23,0.023100000000000002,5.2e-05,0.0012
2015,4.24,0.0223,5.19e-05,0.000764
2016,4.15,0.0233,5.19e-05,0.00032900000000000003
2017,4.55,0.024300000000000002,5.19e-05,0.0
2018,4.66,0.0256,5.18e-05,0.0