year,IPC1,IPC2,IPC4,IPCMAG
1850,0.107,0.561,4.86e-07,0.00152
1851,0.112,0.591,5.119999999999999e-07,0.0016
1852,0.118,0.623,5.4e-07,0.0016799999999999999
1853,0.125,0.657,5.69e-07,0.00177
1854,0.132,0.693,6e-07,0.0018700000000000001
1855,0.139,0.731,6.33e-07,0.00197
1856,0.147,0.771,6.68e-07,0.0020800000000000003
1857,0.155,0.813,7.04e-07,0.00219
1858,0.163,0.856,7.41e-07,0.00231
1859,0.171,0.9,7.799999999999999e-07,0.0024300000000000003
1860,0.18,0.946,8.2e-07,0.0025499999999999997
1861,0.189,0.994,8.61e-07,0.00268
1862,0.198,1.04,9.039999999999999e-07,0.00282
1863,0.208,1.1,9.489999999999999e-07,0.00296
1864,0.219,1.15,9.959999999999999e-07,0.0031
1865,0.23,1.21,1.05e-06,0.00326
1866,0.136,0.717,6.210000000000001e-07,0.0019299999999999999
1867,0.169,0.887,7.690000000000001e-07,0.00239
1868,0.0844,0.444,3.84e-07,0.0012
1869,0.194,1.02,8.86e-07,0.00276
1870,0.202,1.06,9.19e-07,0.0028599999999999997
1871,0.297,1.56,1.35e-06,0.00422
1872,0.176,0.926,8.02e-07,0.0025
1873,0.194,1.02,8.86e-07,0.00276
1874,0.15,0.791,6.85e-07,0.00213
1875,0.165,0.868,7.52e-07,0.00234
1876,0.14,0.735,6.37e-07,0.00198
1877,0.0844,0.444,3.84e-07,0.0012
1878,0.0289,0.152,1.3200000000000002e-07,0.00041
1879,0.00367,0.0193,1.67e-08,5.21e-05
1880,0.00367,0.0193,1.67e-08,5.21e-05
1881,0.00367,0.0193,1.67e-08,5.21e-05
1882,0.00367,0.0193,1.67e-08,5.21e-05
1883,0.00367,0.0193,1.67e-08,5.21e-05
1884,0.00367,0.0193,1.67e-08,5.21e-05
1885,0.00367,0.0193,1.67e-08,5.21e-05
1886,0.00367,0.0193,1.67e-08,5.21e-05
1887,0.00367,0.0193,1.67e-08,5.21e-05
1888,0.00367,0.0193,1.67e-08,5.21e-05
1889,0.061,0.321,2.78e-07,0.000865
1890,0.187,0.182,8.52e-07,0.00265
1891,0.313,0.183,1.43e-06,0.00444
1892,0.37,0.183,1.6900000000000001e-06,0.00526
1893,0.327,0.184,1.49e-06,0.00463
1894,0.334,0.184,1.52e-06,0.00474
1895,0.312,0.185,1.42e-06,0.00442
1896,0.374,0.186,1.6999999999999998e-06,0.00531
1897,0.363,0.186,1.65e-06,0.00515
1898,0.462,0.187,2.1099999999999997e-06,0.00656
1899,0.242,0.188,1.1e-06,0.00344
1900,0.418,0.189,1.91e-06,0.0059299999999999995
1901,0.419,0.19,1.91e-06,0.0059299999999999995
1902,0.334,0.191,1.52e-06,0.00474
1903,0.4,0.192,1.82e-06,0.00567
1904,0.356,0.193,1.62e-06,0.00505
1905,0.28,0.194,1.2700000000000001e-06,0.00396
1906,0.261,0.196,1.19e-06,0.0037
1907,0.43,0.197,1.96e-06,0.00609
1908,0.731,0.199,3.33e-06,0.0104
1909,0.562,0.2,2.56e-06,0.00796
1910,0.72,0.202,3.28e-06,0.010199999999999999
1911,0.907,0.204,4.13e-06,0.0129
1912,1.17,0.206,5.3400000000000005e-06,0.0166
1913,1.34,0.208,6.1e-06,0.019
1914,0.0121,0.21,5.01e-08,0.000156
1915,0.023,0.212,1.0000000000000001e-07,0.000312
1916,0.067,0.215,3.01e-07,0.000937
1917,0.09259999999999999,0.218,4.18e-07,0.0013
1918,0.126,0.221,5.68e-07,0.00177
1919,0.107,0.225,4.85e-07,0.00151
1920,0.679,0.229,3.09e-06,0.009630000000000001
1921,0.745,0.236,3.3899999999999997e-06,0.0106
1922,0.679,0.246,3.09e-06,0.009630000000000001
1923,0.921,0.259,4.1900000000000005e-06,0.013099999999999999
1924,1.3,0.274,5.92e-06,0.0184
1925,1.98,0.291,9.04e-06,0.0282
1926,1.82,0.309,8.31e-06,0.0259
1927,2.32,0.328,1.06e-05,0.033
1928,2.3,0.419,1.0500000000000001e-05,0.0327
1929,2.63,0.44,1.2e-05,0.0373
1930,2.77,0.466,1.26e-05,0.039299999999999995
1931,2.64,0.492,1.2e-05,0.037399999999999996
1932,2.59,0.506,1.18e-05,0.0367
1933,2.2,0.521,1e-05,0.0312
1934,2.71,0.561,1.23e-05,0.0385
1935,2.78,0.587,1.26e-05,0.0394
1936,3.24,0.605,1.47e-05,0.045899999999999996
1937,3.46,0.623,1.57e-05,0.0489
1938,2.71,0.647,1.23e-05,0.038299999999999994
1939,0.0927,0.679,3.68e-07,0.00115
1940,0.156,0.616,6.520000000000001e-07,0.0020299999999999997
1941,0.117,0.566,4.68e-07,0.00146
1942,0.225,0.558,9.529999999999999e-07,0.00297
1943,0.23,0.571,9.69e-07,0.00302
1944,0.129,0.584,5.01e-07,0.00156
1945,0.0608,0.596,1.84e-07,0.0005729999999999999
1946,0.09559999999999999,0.631,3.34e-07,0.0010400000000000001
1947,0.101,0.682,3.51e-07,0.00109
1948,1.24,0.743,5.55e-06,0.0173
1949,1.51,0.783,6.73e-06,0.021
1950,3.97,0.834,1.7899999999999998e-05,0.0559
1951,4.4,0.879,1.9900000000000003e-05,0.062
1952,4.55,0.999,2.06e-05,0.064
1953,4.57,1.12,2.06e-05,0.06409999999999999
1954,4.73,1.24,2.13e-05,0.06620000000000001
1955,5.47,1.45,2.46e-05,0.07659999999999999
1956,5.76,1.57,2.59e-05,0.08059999999999999
1957,6.31,1.65,2.83e-05,0.0882
1958,6.9,1.78,3.09e-05,0.0964
1959,7.53,1.92,3.3799999999999995e-05,0.105
1960,8.7,2.1,3.91e-05,0.122
1961,9.03,2.28,4.06e-05,0.126
1962,9.33,2.42,4.2000000000000004e-05,0.131
1963,11.2,2.71,5.06e-05,0.158
1964,12.0,3.0,5.4199999999999996e-05,0.169
1965,15.6,3.38,7.03e-05,0.219
1966,17.0,3.68,7.68e-05,0.239
1967,18.0,3.72,8.12e-05,0.253
1968,20.4,4.14,9.24e-05,0.288
1969,23.2,4.61,0.00010499999999999999,0.327
1970,21.8,4.4,9.16e-05,0.332
1971,25.1,4.8,9.4e-05,0.329
1972,28.5,5.24,9.719999999999999e-05,0.34
1973,34.0,5.48,0.0001,0.383
1974,33.2,5.72,9.82e-05,0.32
1975,35.2,6.08,0.000102,0.315
1976,38.6,6.33,0.00010499999999999999,0.389
1977,41.8,7.11,0.000107,0.398
1978,42.5,7.42,0.00011,0.489
1979,45.5,7.98,0.000112,0.506
1980,45.3,8.06,0.00011300000000000001,0.467
1981,44.3,8.08,0.00011300000000000001,0.449
1982,45.7,7.92,0.00011300000000000001,0.508
1983,48.5,8.41,0.00011300000000000001,0.548
1984,50.3,8.15,0.000114,0.517
1985,53.8,8.15,0.000115,0.584
1986,52.5,7.99,0.000116,0.511
1987,56.9,8.0,0.000115,0.413
1988,61.6,7.9,0.00011700000000000001,0.45
1989,68.1,7.63,0.00011899999999999999,0.44
1990,67.6,8.08,0.000146,0.435
1991,68.3,7.85,0.000146,0.423
1992,70.3,7.77,0.000146,0.426
1993,69.6,7.48,0.000146,0.34
1994,71.7,7.43,0.000146,0.406
1995,71.7,7.84,0.000146,0.359
1996,73.0,7.84,0.000146,0.398
1997,76.3,7.87,0.000146,0.362
1998,80.3,8.05,0.000146,0.269
1999,79.7,8.09,0.000146,0.268
2000,83.9,8.26,0.000146,0.267
2001,86.5,8.17,0.000146,0.248
2002,86.6,7.96,0.000332,0.24
2003,88.5,8.14,0.000598,0.242
2004,89.8,8.17,0.000736,0.212
2005,91.2,8.61,0.00138,0.212
2006,89.6,8.45,0.0016899999999999999,0.196
2007,90.0,8.28,0.0022400000000000002,0.19
2008,89.6,7.88,0.00261,0.177
2009,87.0,6.27,0.00886,0.178
2010,79.3,5.92,0.00453,0.172
2011,77.1,4.17,0.004,0.168
2012,77.6,4.78,0.0024700000000000004,0.164
2013,66.5,5.35,0.00272,0.187
2014,64.8,5.58,0.00741,0.308
2015,62.6,5.22,0.0064,0.28
2016,60.0,5.43,0.0067800000000000004,0.301
2017,63.7,5.38,0.00717,0.319
2018,61.9,5.4,0.0075899999999999995,0.338