year,IPC1,IPC2,IPC4,IPCMAG
1850,0.00181,0.0,4.1100000000000004e-08,4.21e-06
1851,0.00219,0.0,4.9799999999999996e-08,5.11e-06
1852,0.0028799999999999997,0.0,6.550000000000001e-08,6.72e-06
1853,0.00375,0.0,8.52e-08,8.74e-06
1854,0.00466,0.0,1.06e-07,1.09e-05
1855,0.0054800000000000005,0.0,1.25e-07,1.2800000000000001e-05
1856,0.00626,0.0,1.42e-07,1.46e-05
1857,0.00704,0.0,1.6e-07,1.6400000000000002e-05
1858,0.0077,0.0,1.75e-07,1.7899999999999998e-05
1859,0.00816,0.0,1.86e-07,1.9e-05
1860,0.0107,0.0,2.42e-07,2.49e-05
1861,0.0136,0.0,3.1e-07,3.18e-05
1862,0.012199999999999999,0.0,2.78e-07,2.85e-05
1863,0.0127,0.0,2.9e-07,2.97e-05
1864,0.014199999999999999,0.0,3.24e-07,3.32e-05
1865,0.0135,0.0,3.08e-07,3.16e-05
1866,0.0435,0.0,9.89e-07,0.000101
1867,0.0497,0.0,1.13e-06,0.000116
1868,0.0409,0.0,9.300000000000001e-07,9.53e-05
1869,0.055799999999999995,0.0,1.2700000000000001e-06,0.00013000000000000002
1870,0.060700000000000004,0.0,1.38e-06,0.00014199999999999998
1871,0.0824,0.0,1.8699999999999999e-06,0.000192
1872,0.0846,0.0,1.9200000000000003e-06,0.00019700000000000002
1873,0.0782,0.0,1.78e-06,0.000182
1874,0.0943,0.0,2.15e-06,0.00022
1875,0.107,0.0,2.44e-06,0.00025
1876,0.131,0.0,2.98e-06,0.000306
1877,0.131,0.0,2.97e-06,0.000305
1878,0.172,0.0,3.910000000000001e-06,0.00040100000000000004
1879,0.173,0.0,3.9399999999999995e-06,0.000404
1880,0.204,0.0,4.64e-06,0.00047599999999999997
1881,0.209,0.0,4.75e-06,0.00048699999999999997
1882,0.219,0.0,4.98e-06,0.0005110000000000001
1883,0.25,0.0,5.69e-06,0.000583
1884,0.24,0.0,5.459999999999999e-06,0.0005600000000000001
1885,0.253,0.0,5.760000000000001e-06,0.0005909999999999999
1886,0.259,0.0,5.89e-06,0.0006039999999999999
1887,0.262,0.0,5.950000000000001e-06,0.00061
1888,0.27,0.0,6.13e-06,0.000629
1889,0.298,0.0,6.7799999999999995e-06,0.000695
1890,0.329,0.0,7.51e-06,0.0007700000000000001
1891,0.35,0.0,7.98e-06,0.0008179999999999999
1892,0.374,0.0,8.5e-06,0.0008719999999999999
1893,0.437,0.0,9.93e-06,0.00102
1894,0.461,0.0,1.0500000000000001e-05,0.00107
1895,0.499,0.0,1.1299999999999999e-05,0.00116
1896,0.513,0.0,1.17e-05,0.0011899999999999999
1897,0.596,0.0,1.35e-05,0.00139
1898,0.666,0.0,1.52e-05,0.00155
1899,0.794,0.0,1.8100000000000003e-05,0.00185
1900,0.89,0.0,2.03e-05,0.0020800000000000003
1901,0.885,0.0,2.01e-05,0.00207
1902,0.862,0.0,1.96e-05,0.0020099999999999996
1903,0.867,0.0,1.98e-05,0.0020299999999999997
1904,0.985,0.0,2.2499999999999998e-05,0.0023
1905,0.928,0.0,2.11e-05,0.00217
1906,1.06,0.0,2.41e-05,0.0024700000000000004
1907,1.2,0.0,2.7400000000000002e-05,0.00281
1908,1.21,0.0,2.76e-05,0.00283
1909,1.27,0.0,2.9e-05,0.00298
1910,1.23,0.0,2.81e-05,0.0028799999999999997
1911,1.31,2.68e-05,2.98e-05,0.0030499999999999998
1912,1.51,0.000103,3.4500000000000005e-05,0.00354
1913,1.67,0.000223,3.82e-05,0.00392
1914,1.47,0.000379,3.36e-05,0.0034500000000000004
1915,1.3,0.0005669999999999999,2.97e-05,0.0030499999999999998
1916,1.38,0.0007790000000000001,3.16e-05,0.00325
1917,1.29,0.00101,2.94e-05,0.0030099999999999997
1918,0.506,0.00125,1.1599999999999999e-05,0.0011799999999999998
1919,0.389,0.0015,8.87e-06,0.000909
1920,0.36,0.00175,8.200000000000001e-06,0.000841
1921,0.404,0.00202,9.220000000000002e-06,0.000945
1922,0.493,0.00232,1.12e-05,0.00115
1923,0.542,0.00266,1.23e-05,0.00127
1924,0.671,0.00304,1.53e-05,0.00157
1925,0.647,0.0034500000000000004,1.47e-05,0.00151
1926,0.988,0.0038900000000000002,2.2499999999999998e-05,0.00231
1927,1.24,0.0106,2.82e-05,0.00289
1928,1.4,0.0106,3.1899999999999996e-05,0.00327
1929,1.46,0.0124,3.33e-05,0.00342
1930,1.82,0.0152,4.1599999999999995e-05,0.00426
1931,2.18,0.016399999999999998,4.98e-05,0.0050999999999999995
1932,2.6,0.0174,5.92e-05,0.00607
1933,2.99,0.0159,6.809999999999999e-05,0.0069900000000000006
1934,3.66,0.019100000000000002,8.36e-05,0.00857
1935,4.2,0.022699999999999998,9.6e-05,0.00984
1936,4.86,0.0277,0.000111,0.0114
1937,4.95,0.027600000000000003,0.00011300000000000001,0.0116
1938,5.22,0.0293,0.00011899999999999999,0.012199999999999999
1939,5.29,0.0303,0.000121,0.0124
1940,6.51,0.030899999999999997,0.000149,0.015300000000000001
1941,5.62,0.0318,0.000128,0.0132
1942,3.61,0.0298,8.24e-05,0.00845
1943,5.01,0.027800000000000002,0.000114,0.011699999999999999
1944,4.3,0.0258,9.82e-05,0.0101
1945,5.14,0.0238,0.00011700000000000001,0.012
1946,5.75,0.0295,0.000131,0.0135
1947,6.91,0.0347,0.000158,0.0162
1948,7.29,0.0412,0.000166,0.0171
1949,8.26,0.046799999999999994,0.000189,0.019399999999999997
1950,9.17,0.0559,0.00020999999999999998,0.0215
1951,9.94,0.0645,0.00022700000000000002,0.0233
1952,10.6,0.0747,0.000241,0.0248
1953,11.1,0.087,0.000253,0.026
1954,12.1,0.104,0.00027600000000000004,0.028300000000000002
1955,13.6,0.124,0.000311,0.0319
1956,14.7,0.141,0.00033600000000000004,0.0344
1957,15.8,0.164,0.000361,0.0371
1958,16.5,0.187,0.000376,0.0386
1959,17.0,0.214,0.000388,0.039799999999999995
1960,17.2,0.244,0.000393,0.040299999999999996
1961,17.2,0.27,0.00039200000000000004,0.0402
1962,17.4,0.3,0.00039600000000000003,0.040600000000000004
1963,18.2,0.323,0.000415,0.0425
1964,18.9,0.347,0.000431,0.0442
1965,19.7,0.381,0.000449,0.046
1966,20.5,0.416,0.000467,0.0479
1967,20.9,0.443,0.00047599999999999997,0.0489
1968,21.0,0.464,0.00047799999999999996,0.049
1969,21.5,0.483,0.000489,0.0502
1970,23.0,0.513,0.000522,0.051
1971,23.7,0.545,0.0005380000000000001,0.0577
1972,24.7,0.576,0.0005600000000000001,0.0621
1973,25.2,0.605,0.0005729999999999999,0.069
1974,25.7,0.64,0.000583,0.0745
1975,26.6,0.689,0.0006039999999999999,0.0815
1976,27.4,0.721,0.000621,0.08070000000000001
1977,27.9,0.743,0.000635,0.0839
1978,28.5,0.757,0.000642,0.0846
1979,28.6,0.762,0.0006450000000000001,0.08270000000000001
1980,30.0,0.778,0.000675,0.09179999999999999
1981,28.0,0.795,0.000631,0.0935
1982,28.4,0.809,0.000639,0.1
1983,28.3,0.857,0.000638,0.114
1984,28.1,0.874,0.000634,0.114
1985,31.2,0.897,0.000703,0.121
1986,31.8,0.971,0.000718,0.128
1987,32.1,0.99,0.000725,0.131
1988,32.5,1.01,0.000733,0.129
1989,31.2,0.999,0.000704,0.11
1990,28.2,0.968,0.000661,0.09540000000000001
1991,26.2,0.944,0.0006670000000000001,0.158
1992,25.0,0.728,0.000722,0.0519
1993,20.6,0.455,0.0006670000000000001,0.0405
1994,20.5,0.88,0.000776,0.0341
1995,19.2,0.901,0.000924,0.0205
1996,19.9,0.913,0.000761,0.0182
1997,19.7,0.954,0.000744,0.0223
1998,17.4,0.983,0.0008010000000000001,0.0259
1999,16.0,0.905,0.000882,0.0219
2000,16.2,0.871,0.00101,0.0268
2001,17.0,0.889,0.000837,0.0303
2002,16.2,0.582,0.0008129999999999999,0.0292
2003,18.5,0.657,0.000864,0.0261
2004,18.7,0.898,0.000527,0.027100000000000003
2005,18.2,0.919,0.0005200000000000001,0.0289
2006,17.7,0.963,0.000217,0.018699999999999998
2007,20.0,1.13,0.000202,0.0205
2008,19.1,1.14,0.000289,0.0259
2009,17.0,0.463,0.000248,0.0289
2010,20.9,0.386,0.000221,0.0179
2011,21.5,0.529,0.000212,0.0175
2012,20.7,0.56,0.000299,0.0175
2013,23.0,0.723,0.00036199999999999996,0.00029299999999999997
2014,22.7,0.607,0.00032900000000000003,0.00029299999999999997
2015,21.6,0.404,0.00033800000000000003,0.00029299999999999997
2016,21.8,0.39,0.00036199999999999996,0.00029299999999999997
2017,23.5,0.519,0.00038700000000000003,0.00029299999999999997
2018,25.5,0.515,0.000415,0.00029299999999999997