year,IPC1,IPC2,IPC4,IPCMAG
1850,0.0997,0.018600000000000002,1.43e-05,0.000545
1851,0.105,0.019600000000000003,1.5100000000000001e-05,0.000574
1852,0.111,0.0206,1.59e-05,0.000605
1853,0.117,0.0217,1.67e-05,0.000638
1854,0.123,0.0229,1.77e-05,0.0006730000000000001
1855,0.13,0.0242,1.8599999999999998e-05,0.0007099999999999999
1856,0.137,0.0255,1.9699999999999998e-05,0.000749
1857,0.144,0.0269,2.07e-05,0.000789
1858,0.152,0.028300000000000002,2.18e-05,0.0008309999999999999
1859,0.16,0.0298,2.29e-05,0.000874
1860,0.168,0.0313,2.41e-05,0.000919
1861,0.176,0.0329,2.53e-05,0.0009649999999999999
1862,0.185,0.0345,2.66e-05,0.00101
1863,0.195,0.0363,2.79e-05,0.00106
1864,0.204,0.0381,2.93e-05,0.0011200000000000001
1865,0.214,0.04,3.08e-05,0.00117
1866,0.225,0.0419,3.23e-05,0.00123
1867,0.236,0.044,3.39e-05,0.0012900000000000001
1868,0.248,0.0461,3.5499999999999996e-05,0.00135
1869,0.26,0.0484,3.7199999999999996e-05,0.0014199999999999998
1870,0.0228,0.00425,3.28e-06,0.000125
1871,0.0381,0.00709,5.459999999999999e-06,0.000208
1872,0.54,0.101,7.75e-05,0.0029500000000000004
1873,0.754,0.14,0.000108,0.00412
1874,0.552,0.103,7.92e-05,0.00302
1875,1.21,0.226,0.000174,0.00664
1876,1.19,0.222,0.000171,0.00651
1877,0.696,0.13,9.99e-05,0.00381
1878,0.666,0.124,9.56e-05,0.00364
1879,0.734,0.137,0.00010499999999999999,0.004019999999999999
1880,0.913,0.17,0.000131,0.0049900000000000005
1881,0.925,0.172,0.000133,0.005059999999999999
1882,1.13,0.211,0.000162,0.00618
1883,1.18,0.22,0.00017,0.00647
1884,1.25,0.233,0.000179,0.0068200000000000005
1885,1.16,0.216,0.000166,0.00632
1886,1.28,0.238,0.000183,0.0069900000000000006
1887,1.32,0.245,0.000189,0.0072
1888,1.42,0.264,0.000204,0.0077599999999999995
1889,1.63,0.304,0.00023400000000000002,0.008919999999999999
1890,1.74,0.266,0.00025,0.009529999999999999
1891,1.81,0.266,0.000259,0.009880000000000002
1892,1.76,0.267,0.000252,0.009609999999999999
1893,1.58,0.268,0.00022600000000000002,0.00861
1894,1.85,0.269,0.000265,0.0101
1895,1.76,0.27,0.000253,0.009630000000000001
1896,1.8,0.271,0.000258,0.00982
1897,1.89,0.272,0.00027100000000000003,0.0103
1898,2.16,0.273,0.00031,0.011800000000000001
1899,2.23,0.274,0.00032,0.012199999999999999
1900,2.56,0.275,0.000368,0.014
1901,2.48,0.277,0.000356,0.0136
1902,2.72,0.278,0.00039,0.0149
1903,2.62,0.28,0.000376,0.0143
1904,2.68,0.281,0.000384,0.0146
1905,2.62,0.283,0.000376,0.0143
1906,3.01,0.285,0.000432,0.0165
1907,3.28,0.287,0.00047099999999999996,0.018
1908,3.27,0.29,0.00046899999999999996,0.0179
1909,3.32,0.292,0.00047599999999999997,0.0181
1910,3.37,0.294,0.000484,0.0184
1911,3.26,0.297,0.00046800000000000005,0.0178
1912,3.79,0.3,0.000544,0.0207
1913,4.01,0.303,0.000575,0.0219
1914,3.51,0.306,0.000503,0.0192
1915,3.2,0.309,0.00046,0.0175
1916,3.1,0.313,0.00044500000000000003,0.017
1917,1.72,0.317,0.000247,0.0094
1918,1.14,0.322,0.000163,0.00622
1919,2.24,0.328,0.000322,0.0123
1920,2.18,0.334,0.000313,0.0119
1921,2.23,0.343,0.00032,0.012199999999999999
1922,3.08,0.358,0.000441,0.016800000000000002
1923,2.78,0.377,0.000399,0.0152
1924,3.15,0.4,0.00045200000000000004,0.0172
1925,3.24,0.425,0.000465,0.0177
1926,3.26,0.451,0.000467,0.0178
1927,3.78,0.478,0.0005420000000000001,0.0206
1928,4.11,0.554,0.0005899999999999999,0.0225
1929,4.08,0.589,0.000585,0.0223
1930,4.44,0.617,0.000637,0.024300000000000002
1931,4.02,0.638,0.0005769999999999999,0.022
1932,3.46,0.675,0.000496,0.0189
1933,4.07,0.726,0.000584,0.0222
1934,4.16,0.762,0.000596,0.022699999999999998
1935,4.44,0.803,0.000637,0.024300000000000002
1936,4.17,0.844,0.000597,0.0228
1937,4.99,0.875,0.000716,0.0273
1938,4.14,0.9,0.000594,0.022600000000000002
1939,4.79,0.939,0.0006860000000000001,0.0261
1940,3.91,0.943,0.0005610000000000001,0.0214
1941,3.79,0.961,0.0005430000000000001,0.0207
1942,3.02,0.956,0.000433,0.0165
1943,2.93,0.975,0.00041999999999999996,0.016
1944,3.25,0.983,0.000465,0.0177
1945,3.33,1.01,0.00047799999999999996,0.0182
1946,3.88,1.06,0.0005560000000000001,0.0212
1947,5.54,1.15,0.000795,0.0303
1948,5.2,1.22,0.000746,0.028399999999999998
1949,5.47,1.26,0.0007840000000000001,0.0299
1950,5.55,1.32,0.000795,0.0303
1951,5.28,1.4,0.000756,0.0288
1952,5.19,1.52,0.000744,0.028300000000000002
1953,5.77,1.62,0.0008269999999999999,0.0315
1954,5.63,1.72,0.000805,0.030699999999999998
1955,6.33,1.82,0.000906,0.0345
1956,6.93,2.09,0.000992,0.0378
1957,7.6,2.18,0.00109,0.0414
1958,7.35,2.33,0.0010500000000000002,0.04
1959,7.79,2.45,0.00111,0.0424
1960,7.94,2.68,0.00114,0.0433
1961,8.82,2.84,0.00126,0.048100000000000004
1962,8.96,3.09,0.00128,0.048799999999999996
1963,9.69,3.26,0.00139,0.0528
1964,10.6,3.55,0.00152,0.058
1965,11.2,3.75,0.0016,0.0611
1966,11.4,3.94,0.00164,0.0624
1967,12.0,4.18,0.00171,0.06520000000000001
1968,12.6,4.35,0.0018,0.0685
1969,14.1,4.61,0.00202,0.07709999999999999
1970,14.7,4.41,0.0019,0.055799999999999995
1971,15.8,4.45,0.0019399999999999999,0.0627
1972,17.6,4.8,0.0020099999999999996,0.0636
1973,19.1,5.16,0.0021000000000000003,0.06709999999999999
1974,19.8,4.96,0.00213,0.0571
1975,20.4,4.91,0.00214,0.0723
1976,21.4,4.8,0.00221,0.06470000000000001
1977,21.4,5.04,0.00228,0.0707
1978,21.0,5.57,0.00232,0.0621
1979,23.4,5.71,0.0024,0.0649
1980,25.1,5.24,0.0024500000000000004,0.048799999999999996
1981,25.4,5.55,0.00248,0.044899999999999995
1982,27.3,5.22,0.0025099999999999996,0.044
1983,28.2,5.2,0.0025099999999999996,0.039200000000000006
1984,27.4,5.2,0.0025,0.0349
1985,25.7,5.02,0.0025299999999999997,0.0367
1986,28.9,5.13,0.00257,0.0356
1987,29.8,5.54,0.00263,0.0339
1988,31.2,5.24,0.0027,0.0324
1989,39.8,5.06,0.00276,0.0316
1990,39.4,5.6,0.00707,0.0339
1991,41.4,5.53,0.00713,0.0339
1992,45.6,5.3,0.00718,0.0339
1993,44.1,5.27,0.00724,0.0339
1994,44.8,5.39,0.00729,0.0339
1995,48.4,5.98,0.00735,0.0238
1996,45.6,6.02,0.00793,0.035
1997,48.2,6.34,0.0088,0.036899999999999995
1998,52.7,6.37,0.00743,0.025
1999,60.0,6.71,0.0069900000000000006,0.0357
2000,58.6,6.88,0.00524,0.0453
2001,58.9,6.17,0.00289,0.0405
2002,63.2,6.29,0.00138,0.0286
2003,58.2,6.2,0.0072699999999999996,0.0273
2004,60.5,6.75,0.0107,0.0253
2005,62.8,6.64,0.0116,0.0298
2006,58.4,6.27,0.0126,0.0434
2007,55.4,6.85,0.0145,0.047700000000000006
2008,53.4,6.47,0.00533,0.055200000000000006
2009,52.3,4.81,0.018,0.052899999999999996
2010,47.9,5.08,0.0165,0.0346
2011,47.2,4.55,0.014199999999999999,0.0431
2012,45.8,4.15,0.0155,0.0418
2013,43.6,4.47,0.0224,0.0342
2014,43.1,4.82,0.0258,0.048
2015,47.5,4.76,0.0242,0.0562
2016,46.3,4.08,0.0238,0.055600000000000004
2017,50.3,4.35,0.026199999999999998,0.0526
2018,47.5,3.89,0.032,0.047799999999999995