year,IPC1,IPC2,IPC4,IPCMAG
1850,0.000747,0.0,7.3e-05,3.33e-05
1851,0.000772,4.43e-08,7.38e-05,3.54e-05
1852,0.0007970000000000001,9.610000000000001e-08,7.46e-05,3.7900000000000006e-05
1853,0.0008219999999999999,1.55e-07,7.539999999999999e-05,4.07e-05
1854,0.000848,2.22e-07,7.620000000000001e-05,4.4e-05
1855,0.000874,2.9500000000000003e-07,7.69e-05,4.7600000000000005e-05
1856,0.000901,3.76e-07,7.77e-05,5.16e-05
1857,0.000928,4.6200000000000003e-07,7.85e-05,5.59e-05
1858,0.0009559999999999999,5.56e-07,7.92e-05,6.06e-05
1859,0.000984,6.56e-07,8e-05,6.57e-05
1860,0.00101,7.61e-07,8.07e-05,7.12e-05
1861,0.0010400000000000001,8.729999999999999e-07,8.15e-05,7.7e-05
1862,0.00107,9.91e-07,8.219999999999999e-05,8.309999999999999e-05
1863,0.0011,1.1100000000000002e-06,8.28e-05,8.96e-05
1864,0.00113,1.24e-06,8.350000000000001e-05,9.64e-05
1865,0.00116,1.38e-06,8.42e-05,0.000104
1866,0.0011899999999999999,1.5100000000000002e-06,8.49e-05,0.000111
1867,0.00122,1.66e-06,8.56e-05,0.00011899999999999999
1868,0.00125,1.81e-06,8.63e-05,0.000127
1869,0.0012900000000000001,1.96e-06,8.7e-05,0.000136
1870,0.00132,2.12e-06,8.78e-05,0.00014399999999999998
1871,0.00135,2.2799999999999998e-06,8.86e-05,0.000153
1872,0.00138,2.44e-06,8.93e-05,0.000163
1873,0.00141,2.61e-06,9.01e-05,0.00017299999999999998
1874,0.00145,2.78e-06,9.09e-05,0.000183
1875,0.00148,2.96e-06,9.17e-05,0.000193
1876,0.00152,3.14e-06,9.25e-05,0.000204
1877,0.00155,3.32e-06,9.34e-05,0.000215
1878,0.00158,3.5100000000000003e-06,9.44e-05,0.00022600000000000002
1879,0.0016200000000000001,3.7e-06,9.55e-05,0.000237
1880,0.00165,3.89e-06,9.66e-05,0.000249
1881,0.0016899999999999999,4.08e-06,9.800000000000001e-05,0.000261
1882,0.00172,4.270000000000001e-06,9.96e-05,0.000273
1883,0.00176,4.47e-06,0.000101,0.00028599999999999996
1884,0.0017900000000000001,4.669999999999999e-06,0.000104,0.000299
1885,0.00183,4.87e-06,0.000106,0.000312
1886,0.00186,5.07e-06,0.000108,0.000325
1887,0.0019,5.27e-06,0.00011,0.000339
1888,0.0019399999999999999,5.48e-06,0.000112,0.00035299999999999996
1889,0.00197,5.68e-06,0.000114,0.000367
1890,0.00221,8.880000000000001e-06,0.000124,0.000365
1891,0.00221,9.5e-06,0.000124,0.00036899999999999997
1892,0.00221,1.03e-05,0.000125,0.000377
1893,0.00222,1.12e-05,0.000127,0.000388
1894,0.00222,1.22e-05,0.000129,0.00040100000000000004
1895,0.00222,1.33e-05,0.000131,0.000417
1896,0.00222,1.45e-05,0.000134,0.000435
1897,0.0022299999999999998,1.58e-05,0.00013700000000000002,0.000455
1898,0.0022299999999999998,1.72e-05,0.00014099999999999998,0.00047599999999999997
1899,0.0022400000000000002,1.8599999999999998e-05,0.000145,0.000499
1900,0.0022400000000000002,2.01e-05,0.000149,0.000522
1901,0.00232,2.19e-05,0.000153,0.000554
1902,0.00254,2.4e-05,0.00016,0.000602
1903,0.0028799999999999997,2.65e-05,0.00016800000000000002,0.00066
1904,0.00331,2.91e-05,0.000178,0.000725
1905,0.0038,3.18e-05,0.000188,0.000794
1906,0.00434,3.4500000000000005e-05,0.000199,0.000862
1907,0.00491,3.71e-05,0.000212,0.000925
1908,0.00546,3.95e-05,0.000224,0.000979
1909,0.0059900000000000005,4.15e-05,0.000237,0.00102
1910,0.00647,4.2999999999999995e-05,0.00025,0.0010500000000000002
1911,0.0069299999999999995,4.4200000000000004e-05,0.000263,0.00106
1912,0.00739,4.5199999999999994e-05,0.000277,0.00107
1913,0.00786,4.61e-05,0.000292,0.00109
1914,0.00834,4.6899999999999995e-05,0.000307,0.0011
1915,0.00883,4.77e-05,0.000324,0.00111
1916,0.00931,4.84e-05,0.000342,0.0011200000000000001
1917,0.009789999999999998,4.92e-05,0.000361,0.00113
1918,0.0103,5e-05,0.000382,0.00113
1919,0.0107,5.0900000000000004e-05,0.00040500000000000003,0.00114
1920,0.0112,5.2e-05,0.00043,0.00114
1921,0.0116,5.32e-05,0.000458,0.00115
1922,0.0121,5.4399999999999994e-05,0.000491,0.00115
1923,0.0125,5.5599999999999996e-05,0.000528,0.00115
1924,0.0129,5.7e-05,0.000569,0.00115
1925,0.0134,5.84e-05,0.000614,0.00115
1926,0.013800000000000002,5.9999999999999995e-05,0.0006630000000000001,0.00115
1927,0.014199999999999999,6.17e-05,0.000714,0.00115
1928,0.0147,6.34e-05,0.000769,0.00115
1929,0.015099999999999999,6.54e-05,0.000825,0.00115
1930,0.0156,6.74e-05,0.000884,0.00115
1931,0.016,6.99e-05,0.0009469999999999999,0.00116
1932,0.0165,7.290000000000001e-05,0.00102,0.00117
1933,0.0169,7.630000000000001e-05,0.00109,0.0011799999999999998
1934,0.0174,8e-05,0.00117,0.0012
1935,0.0178,8.39e-05,0.00126,0.00123
1936,0.0183,8.790000000000001e-05,0.00135,0.00125
1937,0.0188,9.2e-05,0.00145,0.00128
1938,0.019399999999999997,9.59e-05,0.00155,0.00131
1939,0.0201,9.97e-05,0.00165,0.00134
1940,0.0208,0.000103,0.00176,0.00138
1941,0.0218,0.000106,0.0018700000000000001,0.00141
1942,0.0229,0.00010899999999999999,0.002,0.0014399999999999999
1943,0.0242,0.000112,0.00213,0.00147
1944,0.0257,0.000114,0.00227,0.0015
1945,0.0273,0.00011700000000000001,0.0024100000000000002,0.0015300000000000001
1946,0.0291,0.00011899999999999999,0.00256,0.00157
1947,0.030899999999999997,0.000122,0.00271,0.00161
1948,0.032799999999999996,0.000126,0.00287,0.00166
1949,0.0348,0.00013000000000000002,0.00302,0.00171
1950,0.0367,0.000134,0.00318,0.00177
1951,0.038799999999999994,0.00014000000000000001,0.0033399999999999997,0.00188
1952,0.041,0.000148,0.0035,0.0020499999999999997
1953,0.0433,0.000158,0.00367,0.00227
1954,0.0458,0.00016900000000000002,0.00383,0.0025299999999999997
1955,0.0484,0.00018099999999999998,0.00401,0.00282
1956,0.0511,0.000194,0.00419,0.0031
1957,0.053899999999999997,0.000207,0.00437,0.0033799999999999998
1958,0.056600000000000004,0.000221,0.00456,0.00363
1959,0.0594,0.00023400000000000002,0.0047599999999999995,0.00383
1960,0.062200000000000005,0.000246,0.00496,0.00398
1961,0.06470000000000001,0.000258,0.00519,0.004200000000000001
1962,0.0668,0.000268,0.00542,0.00424
1963,0.0687,0.00027800000000000004,0.005679999999999999,0.00431
1964,0.0706,0.00028799999999999995,0.00594,0.00438
1965,0.0727,0.000299,0.00621,0.00455
1966,0.0751,0.00031,0.0064800000000000005,0.00463
1967,0.07809999999999999,0.000323,0.00675,0.0047599999999999995
1968,0.0818,0.000339,0.007019999999999999,0.004860000000000001
1969,0.0864,0.000356,0.00729,0.004940000000000001
1970,0.119,0.000322,0.008539999999999999,0.00509
1971,0.114,0.00033,0.00915,0.00524
1972,0.106,0.00039200000000000004,0.00966,0.00549
1973,0.138,0.000431,0.00941,0.0056500000000000005
1974,0.184,0.000421,0.009710000000000002,0.0059900000000000005
1975,0.198,0.000319,0.00934,0.0063
1976,0.203,0.000398,0.0104,0.00632
1977,0.206,0.000393,0.0106,0.00639
1978,0.187,0.000406,0.0124,0.00615
1979,0.184,0.000458,0.0126,0.0062900000000000005
1980,0.216,0.00045400000000000003,0.0119,0.00604
1981,0.218,0.000443,0.011,0.00575
1982,0.303,0.000431,0.013900000000000001,0.00557
1983,0.321,0.00041999999999999996,0.0162,0.0052
1984,0.335,0.000416,0.0181,0.00504
1985,0.379,0.000828,0.0198,0.00478
1986,0.351,0.000761,0.0206,0.004900000000000001
1987,0.346,0.000982,0.0216,0.00519
1988,0.306,0.000911,0.0233,0.0048200000000000005
1989,0.251,0.0009260000000000001,0.0249,0.0047
1990,0.187,0.0009260000000000001,0.0246,0.0044
1991,0.196,0.0010400000000000001,0.0255,0.00443
1992,0.206,0.00111,0.0256,0.00401
1993,0.189,0.00113,0.0246,0.00405
1994,0.173,0.00234,0.0297,0.00398
1995,0.126,0.00232,0.0299,0.00376
1996,0.165,0.00354,0.0342,0.00418
1997,0.146,0.0027,0.0317,0.00387
1998,0.142,0.00357,0.037899999999999996,0.00369
1999,0.167,0.00357,0.041,0.00364
2000,0.216,0.0039700000000000004,0.0421,0.0035499999999999998
2001,0.23,0.00344,0.0438,0.00367
2002,0.261,0.0038799999999999998,0.0475,0.00393
2003,0.365,0.00577,0.055299999999999995,0.0036
2004,0.402,0.00796,0.06470000000000001,0.00361
2005,0.443,0.00827,0.052899999999999996,0.00364
2006,0.527,0.008369999999999999,0.07690000000000001,0.00363
2007,0.556,0.008150000000000001,0.0528,0.00364
2008,0.555,0.00751,0.07440000000000001,0.00359
2009,0.554,0.00443,0.06409999999999999,0.00361
2010,0.565,0.0063,0.07440000000000001,0.00365
2011,0.544,0.0070599999999999994,0.0757,0.00366
2012,0.543,0.0074,0.0475,0.0037099999999999998
2013,0.545,0.00786,0.0655,0.0039
2014,0.54,0.0111,0.07540000000000001,0.0038900000000000002
2015,0.511,0.00939,0.0445,0.00391
2016,0.633,0.009460000000000001,0.0676,0.0037400000000000003
2017,0.652,0.00975,0.0684,0.00373
2018,0.672,0.01,0.0692,0.00366