year,IPC1,IPC2,IPC4,IPCMAG
1850,0.0035800000000000003,0.0,0.00063,0.000838
1851,0.0037,1.8899999999999997e-08,0.000637,0.0008900000000000001
1852,0.00381,4.1e-08,0.000644,0.0009519999999999999
1853,0.00394,6.62e-08,0.000651,0.00102
1854,0.004059999999999999,9.45e-08,0.0006580000000000001,0.00111
1855,0.00419,1.26e-07,0.000665,0.0012
1856,0.00431,1.6e-07,0.000671,0.0013
1857,0.00445,1.97e-07,0.000678,0.00141
1858,0.00458,2.37e-07,0.000684,0.0015300000000000001
1859,0.00471,2.79e-07,0.000691,0.00165
1860,0.004849999999999999,3.2499999999999996e-07,0.0006969999999999999,0.0017900000000000001
1861,0.0049900000000000005,3.72e-07,0.000704,0.0019399999999999999
1862,0.00513,4.22e-07,0.0007099999999999999,0.00209
1863,0.0052699999999999995,4.75e-07,0.000716,0.00225
1864,0.00541,5.3e-07,0.000721,0.0024300000000000003
1865,0.00556,5.87e-07,0.000727,0.00261
1866,0.0057,6.459999999999999e-07,0.000733,0.00279
1867,0.005849999999999999,7.07e-07,0.000739,0.00299
1868,0.006,7.699999999999999e-07,0.000745,0.0032
1869,0.00615,8.35e-07,0.000752,0.0034100000000000003
1870,0.00631,9.02e-07,0.000758,0.00363
1871,0.00646,9.709999999999999e-07,0.0007650000000000001,0.0038599999999999997
1872,0.00662,1.04e-06,0.000771,0.0040999999999999995
1873,0.00677,1.1100000000000002e-06,0.000778,0.00434
1874,0.0069299999999999995,1.19e-06,0.000785,0.0045899999999999995
1875,0.00709,1.26e-06,0.0007920000000000001,0.004849999999999999
1876,0.00726,1.34e-06,0.000799,0.00512
1877,0.0074199999999999995,1.42e-06,0.0008070000000000001,0.0054
1878,0.00758,1.5e-06,0.000815,0.005679999999999999
1879,0.00775,1.5800000000000001e-06,0.000825,0.00597
1880,0.00791,1.66e-06,0.0008349999999999999,0.00626
1881,0.00808,1.74e-06,0.000847,0.00657
1882,0.00825,1.82e-06,0.000861,0.00688
1883,0.00842,1.91e-06,0.000877,0.00719
1884,0.00858,1.99e-06,0.000894,0.00752
1885,0.00876,2.08e-06,0.0009130000000000001,0.00785
1886,0.00893,2.16e-06,0.0009320000000000001,0.00818
1887,0.0091,2.2499999999999996e-06,0.0009509999999999999,0.00852
1888,0.009269999999999999,2.34e-06,0.0009699999999999999,0.00887
1889,0.00945,2.4199999999999997e-06,0.000989,0.00923
1890,0.0106,3.78e-06,0.00107,0.009179999999999999
1891,0.0106,4.05e-06,0.00107,0.00936
1892,0.0107,4.37e-06,0.00108,0.009779999999999999
1893,0.0108,4.76e-06,0.00109,0.0104
1894,0.0109,5.19e-06,0.00111,0.011300000000000001
1895,0.011,5.67e-06,0.00113,0.0123
1896,0.0111,6.19e-06,0.00116,0.0135
1897,0.0112,6.75e-06,0.0011899999999999999,0.0148
1898,0.011300000000000001,7.33e-06,0.00122,0.0162
1899,0.0114,7.95e-06,0.00125,0.0177
1900,0.0115,8.580000000000001e-06,0.00128,0.0193
1901,0.012,9.33e-06,0.00133,0.0215
1902,0.013,1.02e-05,0.00138,0.0247
1903,0.0145,1.1299999999999999e-05,0.00145,0.0288
1904,0.016300000000000002,1.24e-05,0.0015300000000000001,0.0334
1905,0.0185,1.3599999999999999e-05,0.0016200000000000001,0.038200000000000005
1906,0.0208,1.47e-05,0.00172,0.0429
1907,0.0232,1.58e-05,0.00183,0.047299999999999995
1908,0.0255,1.68e-05,0.0019399999999999999,0.0511
1909,0.027800000000000002,1.77e-05,0.0020499999999999997,0.054
1910,0.0298,1.83e-05,0.00216,0.055600000000000004
1911,0.0317,1.88e-05,0.00227,0.0565
1912,0.0337,1.93e-05,0.00239,0.0574
1913,0.0357,1.9699999999999998e-05,0.00252,0.0582
1914,0.037700000000000004,2e-05,0.00265,0.059
1915,0.039700000000000006,2.03e-05,0.0028,0.0596
1916,0.0417,2.06e-05,0.0029500000000000004,0.060200000000000004
1917,0.0437,2.1000000000000002e-05,0.00312,0.0606
1918,0.045700000000000005,2.13e-05,0.0033,0.061
1919,0.0476,2.17e-05,0.0035,0.061200000000000004
1920,0.0495,2.22e-05,0.0037099999999999998,0.0613
1921,0.0513,2.2700000000000003e-05,0.00396,0.061200000000000004
1922,0.0531,2.3199999999999998e-05,0.00424,0.0608
1923,0.0549,2.37e-05,0.00456,0.060200000000000004
1924,0.056600000000000004,2.4299999999999998e-05,0.00492,0.0594
1925,0.0583,2.49e-05,0.00531,0.0586
1926,0.06,2.5600000000000002e-05,0.005719999999999999,0.0578
1927,0.061799999999999994,2.63e-05,0.00617,0.057
1928,0.0636,2.7e-05,0.00664,0.056299999999999996
1929,0.0654,2.79e-05,0.00713,0.0559
1930,0.0673,2.87e-05,0.00764,0.055799999999999995
1931,0.0692,2.98e-05,0.00818,0.0562
1932,0.0711,3.11e-05,0.00879,0.0571
1933,0.0728,3.2500000000000004e-05,0.009439999999999999,0.0586
1934,0.0747,3.4099999999999995e-05,0.0101,0.0605
1935,0.0765,3.5799999999999996e-05,0.0109,0.0627
1936,0.07859999999999999,3.75e-05,0.011699999999999999,0.06520000000000001
1937,0.08070000000000001,3.92e-05,0.0125,0.0678
1938,0.0832,4.09e-05,0.0134,0.0704
1939,0.0859,4.25e-05,0.0143,0.0729
1940,0.0889,4.4e-05,0.0152,0.07529999999999999
1941,0.09259999999999999,4.53e-05,0.0162,0.0775
1942,0.09709999999999999,4.65e-05,0.0172,0.07959999999999999
1943,0.102,4.7600000000000005e-05,0.0184,0.08159999999999999
1944,0.108,4.87e-05,0.019600000000000003,0.0836
1945,0.115,4.98e-05,0.0208,0.0858
1946,0.122,5.0900000000000004e-05,0.0221,0.0882
1947,0.129,5.22e-05,0.023399999999999997,0.09090000000000001
1948,0.137,5.36e-05,0.0248,0.09390000000000001
1949,0.145,5.52e-05,0.0261,0.0975
1950,0.153,5.72e-05,0.0275,0.102
1951,0.161,5.97e-05,0.0289,0.109
1952,0.17,6.31e-05,0.030199999999999998,0.121
1953,0.18,6.73e-05,0.0317,0.137
1954,0.19,7.199999999999999e-05,0.033100000000000004,0.155
1955,0.201,7.72e-05,0.0346,0.175
1956,0.212,8.269999999999999e-05,0.0361,0.195
1957,0.224,8.840000000000001e-05,0.037700000000000004,0.214
1958,0.235,9.41e-05,0.0394,0.232
1959,0.247,9.97e-05,0.041100000000000005,0.246
1960,0.258,0.00010499999999999999,0.0429,0.256
1961,0.269,0.00011,0.0448,0.256
1962,0.278,0.000114,0.046799999999999994,0.255
1963,0.286,0.00011899999999999999,0.049,0.252
1964,0.294,0.000123,0.0513,0.254
1965,0.303,0.000127,0.0536,0.255
1966,0.313,0.000132,0.056,0.262
1967,0.326,0.00013800000000000002,0.0583,0.273
1968,0.341,0.00014399999999999998,0.060700000000000004,0.26
1969,0.36,0.000152,0.0629,0.257
1970,0.325,0.00014199999999999998,0.06420000000000001,0.264
1971,0.513,0.00013900000000000002,0.0677,0.255
1972,0.625,0.00014299999999999998,0.0693,0.273
1973,0.667,0.00013000000000000002,0.0709,0.268
1974,0.539,0.000124,0.0746,0.285
1975,0.558,0.000114,0.0768,0.298
1976,0.672,0.000106,0.07959999999999999,0.285
1977,0.464,9.74e-05,0.0831,0.289
1978,0.447,9.7e-05,0.0859,0.292
1979,0.459,0.00011,0.0887,0.303
1980,0.375,0.000103,0.09140000000000001,0.305
1981,0.211,9.31e-05,0.0928,0.311
1982,0.163,6.75e-05,0.0925,0.315
1983,0.138,6.88e-05,0.097,0.312
1984,0.142,8.59e-05,0.0997,0.305
1985,0.124,8.219999999999999e-05,0.101,0.275
1986,0.0964,7.950000000000001e-05,0.103,0.275
1987,0.0905,8.09e-05,0.105,0.285
1988,0.0838,0.000617,0.108,0.29
1989,0.09179999999999999,0.00227,0.109,0.29
1990,0.118,0.00226,0.112,0.284
1991,0.09559999999999999,0.00229,0.113,0.287
1992,0.0927,0.00232,0.122,0.294
1993,0.0833,0.00235,0.122,0.304
1994,0.0975,0.00229,0.122,0.315
1995,0.108,0.0030099999999999997,0.126,0.32
1996,0.116,0.0030099999999999997,0.128,0.325
1997,0.11,0.00375,0.128,0.335
1998,0.101,0.00319,0.132,0.34
1999,0.106,0.0037400000000000003,0.138,0.336
2000,0.102,0.006889999999999999,0.143,0.332
2001,0.108,0.00704,0.137,0.323
2002,0.108,0.00968,0.131,0.315
2003,0.105,0.0121,0.125,0.308
2004,0.107,0.00901,0.125,0.307
2005,0.113,0.00722,0.116,0.301
2006,0.11,0.00651,0.112,0.292
2007,0.0996,0.00552,0.131,0.282
2008,0.091,0.00452,0.151,0.286
2009,0.0864,0.00348,0.177,0.289
2010,0.07640000000000001,0.00237,0.167,0.29
2011,0.0732,0.0019299999999999999,0.188,0.305
2012,0.076,0.0012,0.195,0.333
2013,0.0772,0.0008810000000000001,0.199,0.292
2014,0.07659999999999999,0.0008990000000000001,0.205,0.291
2015,0.076,0.000934,0.211,0.261
2016,0.07540000000000001,0.000983,0.218,0.264
2017,0.0653,8.24e-05,0.227,0.265
2018,0.062200000000000005,8.21e-05,0.235,0.282