year,IPC1,IPC2,IPC4,IPCMAG
1850,0.00352,0.0002,1.47e-07,0.000176
1851,0.0037099999999999998,0.00020999999999999998,1.54e-07,0.000186
1852,0.00391,0.000221,1.6300000000000002e-07,0.00019600000000000002
1853,0.00412,0.00023400000000000002,1.72e-07,0.000206
1854,0.00435,0.000246,1.8100000000000002e-07,0.00021799999999999999
1855,0.0045899999999999995,0.00026000000000000003,1.91e-07,0.00023
1856,0.00484,0.00027400000000000005,2.01e-07,0.000242
1857,0.0050999999999999995,0.000289,2.12e-07,0.000255
1858,0.00537,0.000304,2.24e-07,0.00026900000000000003
1859,0.0056500000000000005,0.00032,2.35e-07,0.000283
1860,0.0059299999999999995,0.00033600000000000004,2.47e-07,0.000297
1861,0.00623,0.00035299999999999996,2.6e-07,0.000312
1862,0.00654,0.000371,2.73e-07,0.000328
1863,0.00687,0.000389,2.86e-07,0.00034399999999999996
1864,0.00721,0.00040899999999999997,3.01e-07,0.000361
1865,0.00757,0.000429,3.15e-07,0.000379
1866,0.00795,0.00045,3.3100000000000004e-07,0.000398
1867,0.00834,0.000472,3.4699999999999997e-07,0.000417
1868,0.00874,0.000495,3.6400000000000003e-07,0.000438
1869,0.00917,0.000519,3.82e-07,0.00045900000000000004
1870,0.009609999999999999,0.000544,4.0000000000000003e-07,0.000481
1871,0.0101,0.000571,4.2e-07,0.000504
1872,0.0106,0.0005989999999999999,4.4e-07,0.0005290000000000001
1873,0.0111,0.000629,4.6200000000000003e-07,0.000555
1874,0.0116,0.00066,4.85e-07,0.000583
1875,0.012199999999999999,0.0006929999999999999,5.09e-07,0.000612
1876,0.0128,0.000727,5.34e-07,0.000642
1877,0.0134,0.000762,5.599999999999999e-07,0.0006730000000000001
1878,0.0141,0.000798,5.860000000000001e-07,0.000705
1879,0.0147,0.0008349999999999999,6.13e-07,0.000737
1880,0.0154,0.0008719999999999999,6.41e-07,0.0007700000000000001
1881,0.0161,0.00091,6.69e-07,0.000804
1882,0.016800000000000002,0.000949,6.98e-07,0.000839
1883,0.0175,0.00099,7.280000000000001e-07,0.000874
1884,0.0182,0.00103,7.58e-07,0.000911
1885,0.019,0.00107,7.900000000000001e-07,0.000949
1886,0.0198,0.0011200000000000001,8.23e-07,0.000989
1887,0.0206,0.00117,8.57e-07,0.00103
1888,0.0214,0.00121,8.92e-07,0.00107
1889,0.0223,0.00126,9.29e-07,0.0011200000000000001
1890,0.025,0.00124,1.04e-06,0.00125
1891,0.0259,0.00124,1.08e-06,0.0013
1892,0.027,0.00124,1.13e-06,0.00135
1893,0.0282,0.00124,1.1800000000000001e-06,0.00141
1894,0.0295,0.00124,1.2299999999999999e-06,0.00148
1895,0.030899999999999997,0.00124,1.29e-06,0.00155
1896,0.0324,0.00124,1.35e-06,0.0016200000000000001
1897,0.0339,0.00124,1.41e-06,0.0017
1898,0.0355,0.00124,1.48e-06,0.0017800000000000001
1899,0.037200000000000004,0.00124,1.55e-06,0.00186
1900,0.0389,0.00124,1.62e-06,0.00195
1901,0.040799999999999996,0.00124,1.6999999999999998e-06,0.00204
1902,0.0429,0.00124,1.79e-06,0.00215
1903,0.0451,0.00124,1.88e-06,0.00226
1904,0.0475,0.00125,1.98e-06,0.0023799999999999997
1905,0.05,0.00125,2.08e-06,0.0025
1906,0.0526,0.00125,2.19e-06,0.00263
1907,0.0551,0.00125,2.3e-06,0.00276
1908,0.0577,0.00125,2.4e-06,0.00289
1909,0.060200000000000004,0.00125,2.51e-06,0.0030099999999999997
1910,0.0625,0.00125,2.61e-06,0.00313
1911,0.0648,0.00125,2.7e-06,0.00325
1912,0.06709999999999999,0.00125,2.79e-06,0.0033599999999999997
1913,0.0693,0.00125,2.8900000000000003e-06,0.00347
1914,0.0715,0.00125,2.98e-06,0.0035800000000000003
1915,0.0737,0.00125,3.07e-06,0.00369
1916,0.07590000000000001,0.00125,3.1600000000000002e-06,0.0038
1917,0.0782,0.00125,3.2599999999999997e-06,0.00391
1918,0.08059999999999999,0.00125,3.36e-06,0.004030000000000001
1919,0.083,0.00125,3.46e-06,0.0041600000000000005
1920,0.0856,0.00125,3.5699999999999997e-06,0.00429
1921,0.0883,0.0012900000000000001,3.68e-06,0.00442
1922,0.0911,0.0014,3.8e-06,0.00456
1923,0.09409999999999999,0.00157,3.92e-06,0.00471
1924,0.09709999999999999,0.0018,4.04e-06,0.004860000000000001
1925,0.1,0.00207,4.17e-06,0.00501
1926,0.103,0.0023799999999999997,4.309999999999999e-06,0.00517
1927,0.107,0.00271,4.440000000000001e-06,0.00534
1928,0.11,0.0030499999999999998,4.58e-06,0.00551
1929,0.114,0.0034,4.73e-06,0.005690000000000001
1930,0.117,0.00375,4.88e-06,0.00587
1931,0.121,0.00411,5.04e-06,0.00605
1932,0.125,0.0045,5.19e-06,0.00624
1933,0.129,0.0049299999999999995,5.36e-06,0.00644
1934,0.133,0.0054,5.53e-06,0.00664
1935,0.137,0.00591,5.7000000000000005e-06,0.006849999999999999
1936,0.141,0.00646,5.88e-06,0.00707
1937,0.146,0.00705,6.08e-06,0.0073
1938,0.151,0.007690000000000001,6.27e-06,0.00754
1939,0.156,0.00838,6.48e-06,0.00779
1940,0.161,0.00911,6.7e-06,0.00805
1941,0.166,0.00994,6.92e-06,0.008320000000000001
1942,0.172,0.0109,7.15e-06,0.00859
1943,0.177,0.012,7.37e-06,0.00886
1944,0.183,0.013099999999999999,7.61e-06,0.00915
1945,0.189,0.0144,7.870000000000001e-06,0.00945
1946,0.196,0.0158,8.15e-06,0.009789999999999998
1947,0.203,0.0103,8.46e-06,0.010199999999999999
1948,0.211,0.0251,8.81e-06,0.0106
1949,0.179,0.029,7.46e-06,0.00897
1950,0.312,0.0402,1.3e-05,0.0156
1951,0.308,0.055,1.2800000000000001e-05,0.0154
1952,0.524,0.0735,2.18e-05,0.026199999999999998
1953,0.557,0.0703,2.3199999999999998e-05,0.027899999999999998
1954,0.546,0.0852,2.2800000000000002e-05,0.0273
1955,0.799,0.122,3.33e-05,0.04
1956,0.862,0.13,3.59e-05,0.0431
1957,0.895,0.145,3.73e-05,0.0448
1958,0.931,0.142,3.88e-05,0.0466
1959,1.02,0.102,4.25e-05,0.051
1960,0.957,0.0917,3.99e-05,0.0479
1961,0.917,0.125,3.82e-05,0.045899999999999996
1962,1.12,0.129,4.67e-05,0.0562
1963,1.14,0.123,4.7300000000000005e-05,0.0569
1964,1.6,0.16,6.66e-05,0.08
1965,1.44,0.117,6.02e-05,0.0723
1966,1.53,0.15,6.379999999999999e-05,0.0767
1967,1.42,0.166,5.9e-05,0.0708
1968,2.19,0.174,9.120000000000001e-05,0.11
1969,2.46,0.208,0.000103,0.123
1970,2.86,0.258,9.27e-05,0.0555
1971,3.23,0.31,9.27e-05,0.0922
1972,4.34,0.35,9.779999999999999e-05,0.146
1973,5.68,0.304,0.000103,0.113
1974,6.12,0.315,0.000108,0.0847
1975,6.05,0.308,0.000114,0.112
1976,6.01,0.339,0.00011999999999999999,0.0897
1977,5.18,0.437,0.000126,0.12
1978,5.02,0.437,0.000132,0.095
1979,6.37,0.445,0.00013800000000000002,0.104
1980,5.95,0.501,0.00014399999999999998,0.09770000000000001
1981,5.69,0.466,0.00015099999999999998,0.0992
1982,5.87,0.462,0.000156,0.0974
1983,7.36,0.53,0.00016,0.0907
1984,6.88,0.542,0.000165,0.103
1985,6.79,0.478,0.00016900000000000002,0.101
1986,7.65,0.501,0.000174,0.103
1987,9.21,0.508,0.000178,0.113
1988,9.09,0.681,0.000183,0.08220000000000001
1989,9.57,0.723,0.000187,0.121
1990,8.7,0.481,0.000192,0.0987
1991,9.42,0.557,0.00019700000000000002,0.134
1992,10.2,0.613,0.000202,0.103
1993,11.1,0.572,0.000206,0.0933
1994,11.8,0.574,0.000213,0.102
1995,15.2,0.65,0.00022,0.123
1996,16.5,0.753,0.00022700000000000002,0.15
1997,17.1,0.829,0.00023400000000000002,0.153
1998,17.5,0.831,0.000255,0.141
1999,17.4,1.0,0.000259,0.13
2000,18.5,1.1,0.000264,0.102
2001,18.4,1.22,0.000272,0.149
2002,19.8,1.32,0.000279,0.141
2003,20.1,1.25,0.000289,0.123
2004,17.0,1.15,0.0003,0.142
2005,17.3,1.18,0.000311,0.141
2006,17.9,1.57,0.000322,0.156
2007,19.1,1.68,0.000332,0.156
2008,18.6,1.7,0.00034300000000000004,0.163
2009,18.3,1.55,0.000354,0.182
2010,19.0,1.64,0.000364,0.181
2011,19.2,1.6,0.000375,0.19
2012,20.1,1.64,0.000384,0.201
2013,19.3,1.68,0.00039400000000000004,0.158
2014,19.1,1.89,0.000404,0.189
2015,19.6,1.96,0.00041299999999999996,0.198
2016,20.2,1.95,0.000423,0.202
2017,19.6,1.96,0.000433,0.205
2018,20.4,1.96,0.000443,0.208