year,IPC1,IPC2,IPC4,IPCMAG
1850,0.031,2.75e-05,0.134,0.275
1851,0.031100000000000003,3.15e-05,0.136,0.275
1852,0.0313,3.5499999999999996e-05,0.137,0.275
1853,0.0317,3.96e-05,0.139,0.276
1854,0.0322,4.3700000000000005e-05,0.141,0.277
1855,0.032799999999999996,4.78e-05,0.142,0.279
1856,0.0335,5.2e-05,0.144,0.281
1857,0.0344,5.63e-05,0.146,0.283
1858,0.0353,6.05e-05,0.147,0.285
1859,0.0364,6.49e-05,0.149,0.287
1860,0.0376,6.93e-05,0.151,0.29
1861,0.0389,7.37e-05,0.152,0.293
1862,0.040299999999999996,7.81e-05,0.154,0.297
1863,0.0418,8.26e-05,0.155,0.3
1864,0.0434,8.72e-05,0.157,0.304
1865,0.0451,9.180000000000001e-05,0.158,0.308
1866,0.0469,9.64e-05,0.16,0.312
1867,0.048799999999999996,0.000101,0.161,0.317
1868,0.0508,0.000106,0.163,0.321
1869,0.0528,0.00011,0.164,0.326
1870,0.0549,0.000115,0.166,0.331
1871,0.0571,0.00011999999999999999,0.168,0.336
1872,0.0594,0.000125,0.17,0.342
1873,0.061700000000000005,0.00013000000000000002,0.172,0.347
1874,0.06409999999999999,0.000135,0.174,0.353
1875,0.0665,0.00013900000000000002,0.177,0.359
1876,0.0691,0.00014399999999999998,0.179,0.365
1877,0.0716,0.000149,0.182,0.371
1878,0.0742,0.000154,0.184,0.377
1879,0.07690000000000001,0.00015900000000000002,0.186,0.384
1880,0.07959999999999999,0.000164,0.189,0.39
1881,0.0823,0.00017,0.191,0.397
1882,0.0851,0.000175,0.193,0.403
1883,0.0879,0.00017999999999999998,0.196,0.41
1884,0.0907,0.000185,0.198,0.417
1885,0.0935,0.00019,0.2,0.424
1886,0.0964,0.000195,0.203,0.431
1887,0.0993,0.0002,0.205,0.438
1888,0.102,0.000206,0.208,0.445
1889,0.105,0.000211,0.21,0.452
1890,0.111,0.00032900000000000003,0.214,0.388
1891,0.115,0.00035299999999999996,0.217,0.437
1892,0.119,0.000381,0.22,0.483
1893,0.123,0.000415,0.223,0.525
1894,0.127,0.000453,0.227,0.563
1895,0.132,0.000495,0.23,0.596
1896,0.136,0.00054,0.233,0.624
1897,0.14,0.000589,0.237,0.647
1898,0.145,0.00064,0.24,0.664
1899,0.149,0.0006929999999999999,0.243,0.674
1900,0.154,0.000748,0.247,0.677
1901,0.158,0.0008129999999999999,0.25,0.673
1902,0.164,0.000892,0.253,0.662
1903,0.17,0.000983,0.257,0.646
1904,0.176,0.00108,0.26,0.627
1905,0.182,0.0011799999999999998,0.264,0.607
1906,0.187,0.00128,0.267,0.586
1907,0.193,0.0013700000000000001,0.271,0.567
1908,0.197,0.00146,0.274,0.551
1909,0.2,0.0015300000000000001,0.278,0.54
1910,0.202,0.00159,0.281,0.536
1911,0.203,0.00164,0.285,0.536
1912,0.203,0.0016799999999999999,0.289,0.537
1913,0.201,0.00171,0.293,0.538
1914,0.2,0.00174,0.297,0.54
1915,0.198,0.00177,0.301,0.543
1916,0.196,0.0018,0.305,0.546
1917,0.194,0.00183,0.309,0.549
1918,0.193,0.00186,0.313,0.553
1919,0.192,0.00189,0.317,0.558
1920,0.193,0.0019299999999999999,0.321,0.563
1921,0.195,0.00198,0.325,0.569
1922,0.199,0.00202,0.33,0.578
1923,0.204,0.00207,0.334,0.59
1924,0.209,0.00212,0.338,0.603
1925,0.215,0.00217,0.342,0.617
1926,0.22,0.00222,0.347,0.632
1927,0.225,0.00228,0.351,0.647
1928,0.23,0.00235,0.356,0.661
1929,0.232,0.00242,0.36,0.674
1930,0.234,0.00249,0.364,0.685
1931,0.234,0.00259,0.368,0.695
1932,0.234,0.0027,0.372,0.706
1933,0.234,0.00282,0.375,0.718
1934,0.234,0.00296,0.379,0.73
1935,0.234,0.00311,0.382,0.742
1936,0.234,0.00326,0.386,0.752
1937,0.234,0.0034100000000000003,0.39,0.761
1938,0.234,0.0035600000000000002,0.395,0.768
1939,0.234,0.0037,0.401,0.772
1940,0.234,0.00383,0.407,0.773
1941,0.233,0.00395,0.417,0.772
1942,0.231,0.00405,0.431,0.769
1943,0.227,0.00415,0.449,0.764
1944,0.223,0.00424,0.47,0.759
1945,0.219,0.00433,0.492,0.753
1946,0.214,0.00443,0.514,0.747
1947,0.21,0.00454,0.536,0.742
1948,0.207,0.00466,0.555,0.738
1949,0.204,0.00481,0.572,0.735
1950,0.204,0.00497,0.584,0.734
1951,0.204,0.00523,0.595,0.737
1952,0.205,0.00564,0.605,0.746
1953,0.206,0.00614,0.615,0.759
1954,0.207,0.00671,0.624,0.775
1955,0.209,0.00729,0.633,0.792
1956,0.21,0.00786,0.64,0.809
1957,0.212,0.008369999999999999,0.647,0.825
1958,0.213,0.00879,0.651,0.838
1959,0.214,0.00906,0.654,0.847
1960,0.214,0.00917,0.656,0.85
1961,0.214,0.00917,0.656,0.851
1962,0.214,0.00917,0.656,0.838
1963,0.214,0.00917,0.656,0.812
1964,0.214,0.00917,0.656,0.784
1965,0.214,0.00917,0.656,0.823
1966,0.214,0.00917,0.656,0.836
1967,0.214,0.00917,0.656,0.85
1968,0.214,0.00917,0.656,0.862
1969,0.214,0.00917,0.656,0.909
1970,0.248,0.00807,0.549,0.893
1971,0.237,0.00777,0.677,0.828
1972,0.248,0.008369999999999999,0.685,0.816
1973,0.258,0.00886,0.694,0.828
1974,0.274,0.00863,0.696,0.801
1975,0.281,0.00739,0.688,0.782
1976,0.3,0.00807,0.702,0.797
1977,0.303,0.00744,0.699,0.816
1978,0.309,0.00653,0.7,0.813
1979,0.324,0.006900000000000001,0.702,0.82
1980,0.324,0.0055,0.694,0.826
1981,0.329,0.005059999999999999,0.68,0.822
1982,0.335,0.00405,0.668,0.828
1983,0.332,0.00368,0.666,0.776
1984,0.349,0.00442,0.662,0.859
1985,0.361,0.004200000000000001,0.654,0.868
1986,0.379,0.004059999999999999,0.647,0.856
1987,0.399,0.00414,0.643,0.85
1988,0.413,0.00437,0.64,0.853
1989,0.447,0.00442,0.633,0.851
1990,0.453,0.0051600000000000005,0.619,0.853
1991,0.457,0.00495,0.643,0.86
1992,0.459,0.00483,0.659,0.836
1993,0.453,0.00487,0.681,0.833
1994,0.444,0.00507,0.706,0.834
1995,0.434,0.00536,0.729,0.844
1996,0.426,0.0029100000000000003,0.755,0.849
1997,0.428,0.00315,0.777,0.846
1998,0.429,0.0030099999999999997,0.765,0.837
1999,0.42,0.00296,0.766,0.845
2000,0.403,0.00292,0.806,0.819
2001,0.381,0.0027400000000000002,0.855,0.796
2002,0.364,0.00262,0.825,0.778
2003,0.376,0.00268,0.818,0.782
2004,0.347,0.00282,0.794,0.77
2005,0.366,0.00297,0.796,0.768
2006,0.348,0.0030499999999999998,0.773,0.758
2007,0.365,0.003,0.759,0.784
2008,0.38,0.00282,0.738,0.772
2009,0.367,0.00173,0.741,0.782
2010,0.377,0.00239,0.734,0.766
2011,0.342,0.00265,0.71,0.768
2012,0.367,0.0025299999999999997,0.713,0.764
2013,0.36,0.0020299999999999997,0.661,0.768
2014,0.337,0.0019199999999999998,0.656,0.761
2015,0.322,0.0017,0.664,0.767
2016,0.31,0.00191,0.652,0.772
2017,0.317,0.00177,0.651,0.776
2018,0.297,0.00176,0.653,0.77