year,IPC1,IPC2,IPC4,IPCMAG
1850,0.006690000000000001,0.0,0.00268,0.00619
1851,0.00691,8.86e-08,0.00271,0.00658
1852,0.00713,1.92e-07,0.0027400000000000002,0.00704
1853,0.00736,3.11e-07,0.00277,0.00757
1854,0.0075899999999999995,4.43e-07,0.0028,0.00817
1855,0.00783,5.900000000000001e-07,0.00282,0.00885
1856,0.00807,7.51e-07,0.00285,0.00959
1857,0.00831,9.25e-07,0.0028799999999999997,0.0104
1858,0.00856,1.1100000000000002e-06,0.0029100000000000003,0.011300000000000001
1859,0.00881,1.31e-06,0.00294,0.012199999999999999
1860,0.00906,1.52e-06,0.00296,0.0132
1861,0.00932,1.75e-06,0.00299,0.0143
1862,0.00958,1.98e-06,0.00302,0.0155
1863,0.00985,2.2300000000000002e-06,0.00304,0.0167
1864,0.0101,2.48e-06,0.00307,0.0179
1865,0.0104,2.75e-06,0.00309,0.0193
1866,0.0107,3.0300000000000002e-06,0.00312,0.0207
1867,0.0109,3.32e-06,0.00314,0.0221
1868,0.0112,3.6099999999999997e-06,0.00317,0.023600000000000003
1869,0.0115,3.92e-06,0.00319,0.0252
1870,0.011800000000000001,4.23e-06,0.00322,0.0268
1871,0.0121,4.5599999999999995e-06,0.00325,0.0285
1872,0.0124,4.890000000000001e-06,0.00328,0.0303
1873,0.0127,5.22e-06,0.00331,0.032100000000000004
1874,0.013,5.57e-06,0.00333,0.034
1875,0.013300000000000001,5.92e-06,0.0033599999999999997,0.0359
1876,0.0136,6.28e-06,0.0034,0.037899999999999996
1877,0.013900000000000001,6.64e-06,0.0034300000000000003,0.0399
1878,0.014199999999999999,7.01e-06,0.00346,0.042
1879,0.0145,7.3899999999999995e-06,0.0035,0.0441
1880,0.0148,7.77e-06,0.0035499999999999998,0.046299999999999994
1881,0.015099999999999999,8.16e-06,0.0036,0.0485
1882,0.0154,8.550000000000001e-06,0.00366,0.0508
1883,0.0157,8.94e-06,0.00373,0.053200000000000004
1884,0.0161,9.339999999999999e-06,0.0038,0.055600000000000004
1885,0.016399999999999998,9.74e-06,0.0038799999999999998,0.058
1886,0.0167,1.01e-05,0.00396,0.0605
1887,0.017,1.0500000000000001e-05,0.00404,0.063
1888,0.0173,1.1e-05,0.00412,0.06559999999999999
1889,0.0177,1.1400000000000001e-05,0.004200000000000001,0.0682
1890,0.0198,1.77e-05,0.00455,0.0678
1891,0.0198,1.9e-05,0.00456,0.0696
1892,0.019899999999999998,2.05e-05,0.0046,0.07429999999999999
1893,0.02,2.23e-05,0.0046500000000000005,0.08159999999999999
1894,0.02,2.4299999999999998e-05,0.004730000000000001,0.0912
1895,0.0201,2.66e-05,0.0048200000000000005,0.103
1896,0.0202,2.9e-05,0.00492,0.116
1897,0.020300000000000002,3.17e-05,0.00504,0.131
1898,0.020399999999999998,3.44e-05,0.00517,0.147
1899,0.0205,3.73e-05,0.00531,0.164
1900,0.0206,4.0300000000000004e-05,0.00545,0.182
1901,0.0213,4.38e-05,0.00563,0.207
1902,0.0233,4.81e-05,0.00587,0.245
1903,0.026199999999999998,5.3e-05,0.00617,0.292
1904,0.0299,5.82e-05,0.00652,0.344
1905,0.0342,6.37e-05,0.006900000000000001,0.4
1906,0.0389,6.91e-05,0.00732,0.454
1907,0.0437,7.42e-05,0.0077599999999999995,0.505
1908,0.0485,7.89e-05,0.008230000000000001,0.548
1909,0.053,8.29e-05,0.0087,0.581
1910,0.0572,8.599999999999999e-05,0.009179999999999999,0.6
1911,0.061,8.840000000000001e-05,0.00966,0.61
1912,0.065,9.039999999999999e-05,0.010199999999999999,0.62
1913,0.0691,9.22e-05,0.0107,0.629
1914,0.0732,9.389999999999999e-05,0.011300000000000001,0.638
1915,0.0773,9.54e-05,0.0119,0.645
1916,0.0814,9.69e-05,0.0125,0.651
1917,0.0855,9.84e-05,0.013300000000000001,0.656
1918,0.0896,0.0001,0.014,0.66
1919,0.09359999999999999,0.000102,0.0149,0.662
1920,0.0975,0.000104,0.0158,0.663
1921,0.101,0.000106,0.016800000000000002,0.661
1922,0.105,0.00010899999999999999,0.018,0.656
1923,0.109,0.000111,0.019399999999999997,0.647
1924,0.112,0.000114,0.0209,0.636
1925,0.116,0.00011700000000000001,0.0225,0.624
1926,0.119,0.00011999999999999999,0.024300000000000002,0.613
1927,0.123,0.000123,0.026199999999999998,0.602
1928,0.127,0.000127,0.0282,0.593
1929,0.131,0.000131,0.0303,0.587
1930,0.135,0.000135,0.0324,0.585
1931,0.139,0.00014000000000000001,0.0348,0.59
1932,0.142,0.000146,0.0373,0.601
1933,0.146,0.000152,0.040100000000000004,0.619
1934,0.15,0.00016,0.0431,0.642
1935,0.154,0.00016800000000000002,0.046299999999999994,0.669
1936,0.158,0.000176,0.0497,0.699
1937,0.162,0.000184,0.053200000000000004,0.73
1938,0.167,0.000192,0.0569,0.761
1939,0.173,0.000199,0.060700000000000004,0.791
1940,0.179,0.000206,0.06459999999999999,0.819
1941,0.187,0.000213,0.0688,0.844
1942,0.197,0.00021799999999999999,0.0733,0.868
1943,0.208,0.000223,0.07809999999999999,0.891
1944,0.22,0.000228,0.0831,0.914
1945,0.234,0.00023300000000000003,0.0884,0.938
1946,0.249,0.00023899999999999998,0.09390000000000001,0.965
1947,0.264,0.000245,0.0995,0.996
1948,0.28,0.000251,0.105,1.03
1949,0.297,0.000259,0.111,1.07
1950,0.313,0.000268,0.117,1.12
1951,0.331,0.00028000000000000003,0.123,1.2
1952,0.35,0.000296,0.129,1.34
1953,0.37,0.000316,0.135,1.52
1954,0.391,0.00033800000000000003,0.141,1.73
1955,0.413,0.00036199999999999996,0.147,1.96
1956,0.436,0.000388,0.154,2.19
1957,0.459,0.000415,0.16,2.42
1958,0.483,0.000441,0.167,2.62
1959,0.507,0.00046800000000000005,0.175,2.78
1960,0.53,0.000493,0.182,2.9
1961,0.552,0.000515,0.19,2.9
1962,0.57,0.000536,0.199,2.91
1963,0.586,0.0005560000000000001,0.208,2.74
1964,0.603,0.0005759999999999999,0.218,2.88
1965,0.621,0.000597,0.228,3.14
1966,0.641,0.00062,0.238,3.25
1967,0.667,0.000647,0.248,3.4
1968,0.698,0.0006770000000000001,0.258,3.4
1969,0.736,0.000632,0.259,3.2
1970,0.754,0.000611,0.262,3.23
1971,0.76,0.0005629999999999999,0.273,3.27
1972,0.725,0.000622,0.28,3.42
1973,0.79,0.000621,0.286,3.55
1974,0.803,0.000583,0.292,3.55
1975,0.942,0.000518,0.295,3.64
1976,1.21,0.0005290000000000001,0.303,3.74
1977,1.24,0.0005420000000000001,0.308,3.86
1978,1.4,0.000497,0.314,3.68
1979,1.48,0.000554,0.326,3.63
1980,1.41,0.00046600000000000005,0.326,3.57
1981,1.22,0.000439,0.327,3.48
1982,1.32,0.00035099999999999997,0.337,3.39
1983,1.26,0.00033600000000000004,0.354,3.45
1984,1.64,0.000384,0.367,3.47
1985,1.47,0.000383,0.374,3.44
1986,1.23,0.00040100000000000004,0.383,3.37
1987,1.24,0.000419,0.388,3.29
1988,1.49,0.000417,0.391,3.34
1989,1.58,0.000442,0.395,3.36
1990,1.39,0.00046100000000000004,0.403,3.39
1991,1.18,0.000434,0.406,3.35
1992,1.21,0.00040100000000000004,0.41,3.39
1993,1.46,0.000412,0.42,3.33
1994,1.64,0.00043599999999999997,0.426,3.36
1995,1.16,0.000493,0.431,3.33
1996,1.49,0.000446,0.432,3.22
1997,1.05,0.00046600000000000005,0.447,3.19
1998,0.9,0.000431,0.439,3.09
1999,0.875,0.000398,0.441,3.17
2000,0.867,0.000426,0.457,3.18
2001,0.88,0.000465,0.463,3.15
2002,0.875,0.000782,0.474,3.28
2003,0.932,0.00149,0.489,3.53
2004,0.951,0.00147,0.502,3.57
2005,0.954,0.0014,0.471,3.57
2006,0.949,0.00134,0.479,3.65
2007,0.927,0.00133,0.425,3.67
2008,0.931,0.0013700000000000001,0.414,3.62
2009,0.917,0.0012,0.408,3.42
2010,0.893,0.0013700000000000001,0.407,3.11
2011,0.892,0.00141,0.406,3.08
2012,0.894,0.0014,0.415,3.18
2013,0.869,0.0012900000000000001,0.424,3.24
2014,0.886,0.0014,0.433,3.27
2015,0.894,0.00152,0.435,3.26
2016,0.922,0.00156,0.401,3.31
2017,0.888,0.0016,0.396,3.39
2018,0.885,0.00163,0.391,3.39