year,IPC1,IPC2,IPC4,IPCMAG
1850,0.00435,0.0,0.0059900000000000005,0.000114
1851,0.0044,1.7e-08,0.00601,0.000118
1852,0.00445,3.3800000000000005e-08,0.00604,0.000122
1853,0.0045,5.05e-08,0.006059999999999999,0.000126
1854,0.00456,6.7e-08,0.00609,0.000129
1855,0.00461,8.339999999999999e-08,0.00611,0.000133
1856,0.00467,9.959999999999999e-08,0.00614,0.00013700000000000002
1857,0.004719999999999999,1.16e-07,0.00617,0.00014000000000000001
1858,0.00478,1.3100000000000002e-07,0.0062,0.00014399999999999998
1859,0.00483,1.47e-07,0.00623,0.000148
1860,0.004889999999999999,1.6300000000000002e-07,0.00626,0.00015099999999999998
1861,0.00495,1.7799999999999998e-07,0.0062900000000000005,0.000155
1862,0.005,1.93e-07,0.00633,0.000158
1863,0.005059999999999999,2.09e-07,0.00636,0.000161
1864,0.00512,2.24e-07,0.0064,0.000165
1865,0.00518,2.3800000000000001e-07,0.00644,0.00016800000000000002
1866,0.00524,2.53e-07,0.0064800000000000005,0.000171
1867,0.0053,2.68e-07,0.00652,0.000175
1868,0.00536,2.82e-07,0.00656,0.000178
1869,0.00542,2.96e-07,0.00661,0.00018099999999999998
1870,0.0054800000000000005,3.11e-07,0.0066500000000000005,0.000184
1871,0.00554,3.2499999999999996e-07,0.0067,0.000188
1872,0.0056,3.39e-07,0.00675,0.000191
1873,0.00566,3.52e-07,0.006809999999999999,0.000194
1874,0.005730000000000001,3.66e-07,0.006860000000000001,0.00019700000000000002
1875,0.00579,3.79e-07,0.00692,0.0002
1876,0.005849999999999999,3.93e-07,0.00698,0.000203
1877,0.00592,4.06e-07,0.00704,0.000206
1878,0.00598,4.19e-07,0.0070999999999999995,0.00020899999999999998
1879,0.00604,4.32e-07,0.0071600000000000006,0.000212
1880,0.00611,4.45e-07,0.00721,0.000215
1881,0.00617,4.58e-07,0.0072699999999999996,0.00021799999999999999
1882,0.00624,4.71e-07,0.00733,0.000221
1883,0.0063,4.83e-07,0.00739,0.000224
1884,0.00637,4.96e-07,0.00745,0.00022700000000000002
1885,0.00643,5.079999999999999e-07,0.00751,0.00023
1886,0.0065,5.2e-07,0.00757,0.00023300000000000003
1887,0.00657,5.33e-07,0.00763,0.000236
1888,0.00663,5.45e-07,0.0077,0.00023899999999999998
1889,0.0067,5.57e-07,0.0077599999999999995,0.000242
1890,0.00983,8.7e-07,0.007940000000000001,0.000245
1891,0.0114,9.32e-07,0.00795,0.000245
1892,0.013,1.01e-06,0.00797,0.000245
1893,0.0147,1.1e-06,0.00799,0.000246
1894,0.016399999999999998,1.2e-06,0.008029999999999999,0.000246
1895,0.0182,1.31e-06,0.00807,0.000247
1896,0.02,1.43e-06,0.008119999999999999,0.000248
1897,0.0219,1.5599999999999999e-06,0.00817,0.000249
1898,0.0238,1.6900000000000001e-06,0.008230000000000001,0.00025
1899,0.0257,1.83e-06,0.008289999999999999,0.000251
1900,0.0277,1.98e-06,0.00836,0.000252
1901,0.03,2.15e-06,0.00844,0.000253
1902,0.032600000000000004,2.3600000000000003e-06,0.00856,0.000255
1903,0.0355,2.5899999999999998e-06,0.0087,0.000257
1904,0.0386,2.8500000000000002e-06,0.00886,0.000259
1905,0.0415,3.11e-06,0.00903,0.000261
1906,0.0443,3.3800000000000002e-06,0.00922,0.000263
1907,0.046700000000000005,3.62e-06,0.00941,0.000266
1908,0.048600000000000004,3.85e-06,0.009609999999999999,0.000268
1909,0.0499,4.05e-06,0.009800000000000001,0.00027100000000000003
1910,0.0504,4.2e-06,0.009980000000000001,0.000273
1911,0.0503,4.32e-06,0.010199999999999999,0.000275
1912,0.0501,4.42e-06,0.0103,0.000277
1913,0.0499,4.52e-06,0.0105,0.000279
1914,0.0496,4.6e-06,0.0107,0.00028100000000000005
1915,0.0492,4.68e-06,0.0109,0.000283
1916,0.0489,4.75e-06,0.0111,0.000285
1917,0.048600000000000004,4.83e-06,0.011300000000000001,0.00028799999999999995
1918,0.048299999999999996,4.9100000000000004e-06,0.0115,0.00029099999999999997
1919,0.048100000000000004,5e-06,0.011699999999999999,0.000294
1920,0.048100000000000004,5.11e-06,0.0119,0.000299
1921,0.0497,5.22e-06,0.0121,0.000308
1922,0.0544,5.3400000000000005e-06,0.0123,0.000324
1923,0.0615,5.47e-06,0.0126,0.000347
1924,0.0707,5.6e-06,0.0128,0.000375
1925,0.0815,5.74e-06,0.013,0.000406
1926,0.0933,5.89e-06,0.0132,0.000438
1927,0.106,6.05e-06,0.0135,0.00047099999999999996
1928,0.118,6.22e-06,0.013699999999999999,0.000502
1929,0.131,6.41e-06,0.014,0.00053
1930,0.142,6.61e-06,0.014199999999999999,0.000554
1931,0.153,6.8500000000000005e-06,0.0145,0.000574
1932,0.163,7.139999999999999e-06,0.0148,0.000592
1933,0.172,7.4700000000000005e-06,0.015,0.00061
1934,0.183,7.83e-06,0.015300000000000001,0.000627
1935,0.193,8.210000000000001e-06,0.0156,0.000644
1936,0.205,8.609999999999999e-06,0.0159,0.00066
1937,0.218,9.01e-06,0.0161,0.0006770000000000001
1938,0.234,9.390000000000002e-06,0.016399999999999998,0.000694
1939,0.251,9.76e-06,0.016800000000000002,0.0007109999999999999
1940,0.271,1.01e-05,0.0171,0.00073
1941,0.298,1.0399999999999999e-05,0.0174,0.000749
1942,0.336,1.07e-05,0.0177,0.000769
1943,0.384,1.09e-05,0.018,0.0007880000000000001
1944,0.441,1.12e-05,0.0184,0.000808
1945,0.505,1.1400000000000001e-05,0.018699999999999998,0.000828
1946,0.575,1.17e-05,0.019100000000000002,0.0008489999999999999
1947,0.651,1.2e-05,0.0195,0.0008719999999999999
1948,0.731,1.23e-05,0.02,0.0008950000000000001
1949,0.814,1.2699999999999999e-05,0.0205,0.00092
1950,0.9,1.31e-05,0.0211,0.0009469999999999999
1951,0.989,1.3700000000000001e-05,0.0218,0.000979
1952,1.09,1.45e-05,0.0228,0.00102
1953,1.19,1.55e-05,0.023899999999999998,0.00107
1954,1.3,1.66e-05,0.0253,0.0011200000000000001
1955,1.43,1.78e-05,0.0268,0.00117
1956,1.57,1.91e-05,0.028399999999999998,0.00121
1957,1.72,2.04e-05,0.030100000000000002,0.00126
1958,1.88,2.18e-05,0.0318,0.0012900000000000001
1959,2.06,2.31e-05,0.033600000000000005,0.00132
1960,2.25,2.4299999999999998e-05,0.0354,0.00133
1961,2.44,2.5600000000000002e-05,0.0373,0.0014
1962,2.62,2.7099999999999998e-05,0.039299999999999995,0.00139
1963,2.81,2.88e-05,0.0416,0.0014
1964,3.04,3.05e-05,0.0439,0.0014299999999999998
1965,3.32,3.2099999999999994e-05,0.046299999999999994,0.0014399999999999999
1966,3.67,3.37e-05,0.048799999999999996,0.00148
1967,4.13,3.5000000000000004e-05,0.0513,0.0015
1968,4.7,3.61e-05,0.0538,0.00151
1969,5.42,3.68e-05,0.0562,0.00159
1970,4.31,3.7e-05,0.06509999999999999,0.00158
1971,4.66,3.6400000000000004e-05,0.07590000000000001,0.00155
1972,4.52,3.57e-05,0.0832,0.00159
1973,3.64,3.85e-05,0.0901,0.0015400000000000001
1974,2.56,3.7e-05,0.0965,0.00166
1975,1.9,4.45e-05,0.103,0.00175
1976,1.71,0.000118,0.113,0.00183
1977,1.38,9.35e-05,0.121,0.0020099999999999996
1978,1.72,6.829999999999999e-05,0.131,0.0027
1979,1.56,8.47e-05,0.14,0.00385
1980,0.947,6.22e-05,0.15,0.00383
1981,0.552,6.0400000000000004e-05,0.158,0.00304
1982,0.374,7.42e-05,0.167,0.00276
1983,0.468,8.37e-05,0.177,0.0028
1984,0.499,6.86e-05,0.187,0.00323
1985,0.552,9.24e-05,0.199,0.0038399999999999997
1986,0.462,9.900000000000001e-05,0.208,0.00311
1987,0.463,0.00010899999999999999,0.218,0.0037099999999999998
1988,0.587,0.000116,0.226,0.0035299999999999997
1989,0.708,0.000116,0.235,0.00357
1990,0.604,0.00011899999999999999,0.241,0.0030299999999999997
1991,0.533,0.000125,0.228,0.0006969999999999999
1992,0.739,0.000132,0.217,0.0009270000000000001
1993,0.934,0.000125,0.207,0.00189
1994,1.18,0.00013900000000000002,0.198,0.0024700000000000004
1995,1.02,0.000145,0.188,0.00328
1996,1.01,0.000158,0.198,0.00395
1997,1.05,0.00016800000000000002,0.208,0.00422
1998,0.852,0.000175,0.219,0.00433
1999,0.753,0.000185,0.229,0.00483
2000,0.794,0.000195,0.24,0.00544
2001,0.731,0.000215,0.245,0.00372
2002,0.719,0.00023799999999999998,0.252,0.004940000000000001
2003,0.885,0.000261,0.257,0.00538
2004,0.896,0.000287,0.263,0.00462
2005,0.959,0.000317,0.27,0.0045899999999999995
2006,0.956,0.000345,0.287,0.004719999999999999
2007,0.893,0.000374,0.305,0.005059999999999999
2008,0.864,0.000402,0.321,0.00545
2009,0.768,0.000431,0.338,0.00594
2010,0.769,0.00045900000000000004,0.355,0.005730000000000001
2011,0.817,0.000488,0.377,0.00541
2012,0.87,0.000516,0.399,0.00541
2013,0.919,0.000544,0.422,0.005730000000000001
2014,0.928,0.000544,0.442,0.00645
2015,0.804,0.000544,0.464,0.00637
2016,0.878,0.000606,0.463,0.00697
2017,0.881,0.000632,0.479,0.00717
2018,0.884,0.0006580000000000001,0.495,0.0074