year,IPC1,IPC2,IPC4,IPCMAG
1850,0.00856,1.2099999999999998e-06,0.0114,0.045700000000000005
1851,0.00861,1.31e-06,0.0116,0.045700000000000005
1852,0.00874,1.43e-06,0.011699999999999999,0.045700000000000005
1853,0.008960000000000001,1.5599999999999999e-06,0.011800000000000001,0.045700000000000005
1854,0.009269999999999999,1.6999999999999998e-06,0.012,0.045700000000000005
1855,0.00966,1.8600000000000002e-06,0.0121,0.045700000000000005
1856,0.0101,2.03e-06,0.0123,0.0458
1857,0.0107,2.21e-06,0.0124,0.0458
1858,0.011300000000000001,2.41e-06,0.0125,0.0458
1859,0.012,2.61e-06,0.0127,0.045899999999999996
1860,0.0128,2.83e-06,0.0128,0.045899999999999996
1861,0.0136,3.06e-06,0.0129,0.046
1862,0.0145,3.31e-06,0.013,0.046
1863,0.0155,3.56e-06,0.013099999999999999,0.0461
1864,0.0166,3.82e-06,0.0132,0.0461
1865,0.0177,4.09e-06,0.013300000000000001,0.046200000000000005
1866,0.0188,4.38e-06,0.0134,0.046299999999999994
1867,0.0201,4.669999999999999e-06,0.0135,0.046299999999999994
1868,0.0213,4.97e-06,0.0136,0.0464
1869,0.022699999999999998,5.28e-06,0.013800000000000002,0.0465
1870,0.0241,5.590000000000001e-06,0.013900000000000001,0.0466
1871,0.0255,5.92e-06,0.014,0.046700000000000005
1872,0.027,6.25e-06,0.014199999999999999,0.046700000000000005
1873,0.0285,6.5900000000000004e-06,0.0144,0.046799999999999994
1874,0.030100000000000002,6.94e-06,0.0146,0.0469
1875,0.0317,7.29e-06,0.0148,0.047
1876,0.0334,7.65e-06,0.015,0.0471
1877,0.0351,8.02e-06,0.0152,0.047299999999999995
1878,0.036899999999999995,8.39e-06,0.0154,0.0474
1879,0.0386,8.77e-06,0.0156,0.0475
1880,0.0404,9.15e-06,0.0157,0.0476
1881,0.0423,9.54e-06,0.0159,0.047700000000000006
1882,0.0441,9.93e-06,0.0161,0.047799999999999995
1883,0.046,1.03e-05,0.016300000000000002,0.048
1884,0.048,1.07e-05,0.0165,0.048100000000000004
1885,0.0499,1.11e-05,0.016800000000000002,0.0482
1886,0.0519,1.15e-05,0.017,0.0484
1887,0.0538,1.1900000000000001e-05,0.0172,0.0485
1888,0.055799999999999995,1.23e-05,0.0174,0.048600000000000004
1889,0.0578,1.2800000000000001e-05,0.0176,0.048799999999999996
1890,0.0625,1.9900000000000003e-05,0.0179,0.0522
1891,0.06470000000000001,2.13e-05,0.0179,0.0489
1892,0.0669,2.3e-05,0.0179,0.045700000000000005
1893,0.0693,2.5e-05,0.018,0.0427
1894,0.0717,2.7300000000000003e-05,0.018,0.0399
1895,0.07429999999999999,2.99e-05,0.0181,0.0373
1896,0.077,3.26e-05,0.0181,0.0352
1897,0.07970000000000001,3.5499999999999996e-05,0.0182,0.0334
1898,0.08259999999999999,3.86e-05,0.0183,0.032
1899,0.0855,4.19e-05,0.0184,0.0312
1900,0.0885,4.5199999999999994e-05,0.0185,0.030899999999999997
1901,0.09190000000000001,4.91e-05,0.018699999999999998,0.030899999999999997
1902,0.0959,5.39e-05,0.0189,0.031100000000000003
1903,0.1,5.94e-05,0.019100000000000002,0.0313
1904,0.105,6.53e-05,0.0195,0.0315
1905,0.11,7.14e-05,0.0198,0.0319
1906,0.114,7.75e-05,0.020300000000000002,0.032299999999999995
1907,0.118,8.319999999999999e-05,0.0207,0.0327
1908,0.121,8.85e-05,0.0212,0.033299999999999996
1909,0.123,9.3e-05,0.0217,0.0339
1910,0.125,9.65e-05,0.0222,0.0345
1911,0.125,9.92e-05,0.0228,0.0363
1912,0.123,0.000102,0.0235,0.04
1913,0.122,0.000104,0.024399999999999998,0.045399999999999996
1914,0.119,0.00010499999999999999,0.0253,0.0522
1915,0.116,0.000107,0.026199999999999998,0.0601
1916,0.114,0.00010899999999999999,0.0272,0.0689
1917,0.111,0.000111,0.0282,0.07809999999999999
1918,0.109,0.000112,0.0292,0.0876
1919,0.108,0.000115,0.030100000000000002,0.097
1920,0.108,0.00011700000000000001,0.031,0.106
1921,0.109,0.00011999999999999999,0.0318,0.116
1922,0.11,0.000122,0.032600000000000004,0.129
1923,0.112,0.000125,0.033299999999999996,0.144
1924,0.115,0.000128,0.034,0.159
1925,0.118,0.000131,0.0347,0.174
1926,0.121,0.000135,0.0355,0.189
1927,0.125,0.00013800000000000002,0.0362,0.201
1928,0.128,0.00014199999999999998,0.037,0.212
1929,0.132,0.000147,0.037899999999999996,0.218
1930,0.136,0.00015099999999999998,0.0389,0.221
1931,0.141,0.000157,0.04,0.218
1932,0.15,0.000164,0.041100000000000005,0.21
1933,0.16,0.000171,0.0424,0.198
1934,0.171,0.000179,0.0438,0.183
1935,0.183,0.000188,0.0453,0.168
1936,0.195,0.00019700000000000002,0.046799999999999994,0.152
1937,0.205,0.000206,0.048299999999999996,0.138
1938,0.214,0.000215,0.0499,0.126
1939,0.221,0.000224,0.0515,0.118
1940,0.224,0.000232,0.0531,0.115
1941,0.226,0.00023899999999999998,0.054700000000000006,0.118
1942,0.229,0.000245,0.056299999999999996,0.125
1943,0.233,0.000251,0.058,0.136
1944,0.237,0.000256,0.0597,0.15
1945,0.242,0.000262,0.0615,0.166
1946,0.247,0.000268,0.0633,0.182
1947,0.253,0.000275,0.06520000000000001,0.198
1948,0.258,0.00028199999999999997,0.06709999999999999,0.212
1949,0.264,0.00029099999999999997,0.0692,0.224
1950,0.269,0.000301,0.0713,0.232
1951,0.277,0.000314,0.0736,0.238
1952,0.288,0.000333,0.076,0.243
1953,0.302,0.00035499999999999996,0.07859999999999999,0.248
1954,0.317,0.00038,0.0814,0.252
1955,0.334,0.000408,0.0842,0.256
1956,0.352,0.000438,0.0871,0.259
1957,0.368,0.00046800000000000005,0.08990000000000001,0.263
1958,0.384,0.000498,0.0928,0.266
1959,0.397,0.000528,0.09559999999999999,0.269
1960,0.408,0.0005560000000000001,0.0983,0.272
1961,0.414,0.000583,0.101,0.282
1962,0.418,0.000609,0.104,0.288
1963,0.419,0.000635,0.107,0.283
1964,0.419,0.000661,0.11,0.28
1965,0.42,0.0006879999999999999,0.113,0.28
1966,0.422,0.000716,0.116,0.276
1967,0.426,0.000746,0.118,0.279
1968,0.434,0.000777,0.121,0.278
1969,0.467,0.0008309999999999999,0.121,0.268
1970,0.469,0.000781,0.118,0.267
1971,0.46,0.0008269999999999999,0.13,0.271
1972,0.444,0.000892,0.132,0.275
1973,0.427,0.0008900000000000001,0.133,0.281
1974,0.42,0.000911,0.135,0.285
1975,0.427,0.000955,0.136,0.286
1976,0.429,0.000991,0.139,0.284
1977,0.441,0.00103,0.141,0.289
1978,0.43,0.0010500000000000002,0.142,0.296
1979,0.451,0.00103,0.144,0.301
1980,0.423,0.00103,0.146,0.303
1981,0.426,0.00111,0.147,0.307
1982,0.419,0.00111,0.148,0.31
1983,0.418,0.00113,0.148,0.311
1984,0.426,0.00106,0.15,0.314
1985,0.421,0.00108,0.151,0.311
1986,0.417,0.000988,0.152,0.307
1987,0.422,0.0010500000000000002,0.151,0.307
1988,0.413,0.000994,0.151,0.307
1989,0.389,0.0008110000000000001,0.149,0.308
1990,0.351,0.000745,0.146,0.31
1991,0.328,0.000585,0.143,0.296
1992,0.303,0.000569,0.145,0.264
1993,0.3,0.000535,0.158,0.23
1994,0.276,0.000589,0.158,0.2
1995,0.285,0.000574,0.162,0.189
1996,0.317,0.0005480000000000001,0.162,0.184
1997,0.31,0.00057,0.166,0.174
1998,0.288,0.000571,0.171,0.161
1999,0.285,0.0005200000000000001,0.174,0.157
2000,0.299,0.000554,0.178,0.149
2001,0.27,0.000565,0.182,0.148
2002,0.241,0.000571,0.184,0.14
2003,0.231,0.0005859999999999999,0.188,0.136
2004,0.203,0.000633,0.187,0.131
2005,0.172,0.000569,0.184,0.128
2006,0.176,0.000596,0.184,0.126
2007,0.173,0.000587,0.183,0.127
2008,0.169,0.0005610000000000001,0.188,0.125
2009,0.154,0.00044,0.194,0.12
2010,0.159,0.000491,0.198,0.118
2011,0.157,0.000503,0.198,0.117
2012,0.156,0.00047999999999999996,0.202,0.116
2013,0.143,0.000484,0.191,0.117
2014,0.139,0.000519,0.184,0.118
2015,0.14,0.00045400000000000003,0.181,0.12
2016,0.136,0.000437,0.183,0.121
2017,0.133,0.0005110000000000001,0.185,0.12
2018,0.128,0.000509,0.187,0.12