year,IPC1,IPC2,IPC4,IPCMAG
1850,0.202,0.0327,9.66e-05,0.000773
1851,0.217,0.0351,0.000104,0.000829
1852,0.217,0.0351,0.000104,0.000829
1853,0.228,0.036899999999999995,0.00010899999999999999,0.000871
1854,0.338,0.054700000000000006,0.000162,0.0012900000000000001
1855,0.316,0.0511,0.00015099999999999998,0.00121
1856,0.478,0.0773,0.000228,0.00183
1857,0.614,0.0993,0.00029299999999999997,0.00235
1858,0.515,0.0833,0.000246,0.00197
1859,0.757,0.123,0.00036199999999999996,0.0029
1860,0.754,0.122,0.00035999999999999997,0.0028799999999999997
1861,0.97,0.157,0.000464,0.0037099999999999998
1862,0.989,0.16,0.000472,0.00378
1863,0.989,0.16,0.000472,0.00378
1864,1.04,0.168,0.000497,0.00398
1865,1.08,0.175,0.000518,0.00415
1866,1.11,0.18,0.000532,0.00426
1867,1.04,0.168,0.000495,0.00396
1868,1.23,0.199,0.000587,0.004690000000000001
1869,1.09,0.177,0.000522,0.00417
1870,1.35,0.218,0.000643,0.00514
1871,1.44,0.233,0.0006879999999999999,0.00551
1872,1.72,0.278,0.00082,0.00656
1873,1.74,0.282,0.000832,0.00666
1874,1.88,0.304,0.0008990000000000001,0.0072
1875,2.29,0.37,0.00109,0.00874
1876,2.43,0.394,0.00116,0.009300000000000001
1877,2.58,0.417,0.00123,0.009869999999999999
1878,2.19,0.354,0.0010400000000000001,0.00836
1879,2.22,0.359,0.00106,0.008490000000000001
1880,2.84,0.459,0.00136,0.0108
1881,2.76,0.447,0.00132,0.0106
1882,3.16,0.511,0.00151,0.0121
1883,3.23,0.523,0.0015400000000000001,0.0124
1884,3.56,0.576,0.0017,0.0136
1885,3.84,0.621,0.00184,0.0147
1886,3.76,0.609,0.0018,0.0144
1887,3.81,0.617,0.00182,0.0146
1888,4.26,0.69,0.00204,0.016300000000000002
1889,4.97,0.805,0.0023799999999999997,0.019
1890,4.96,0.721,0.00237,0.019
1891,5.29,0.723,0.0025299999999999997,0.0202
1892,5.27,0.725,0.00252,0.0201
1893,5.3,0.727,0.0025299999999999997,0.020300000000000002
1894,5.91,0.729,0.00282,0.022600000000000002
1895,5.97,0.732,0.00285,0.0228
1896,6.18,0.734,0.0029500000000000004,0.023600000000000003
1897,6.88,0.737,0.00329,0.0263
1898,7.33,0.741,0.0035,0.028
1899,9.16,0.744,0.00438,0.035
1900,9.2,0.747,0.0044,0.0352
1901,8.55,0.751,0.00409,0.0327
1902,8.96,0.755,0.00428,0.0342
1903,9.84,0.759,0.0047,0.0376
1904,10.4,0.764,0.00495,0.0396
1905,10.2,0.769,0.00487,0.039
1906,11.3,0.774,0.00541,0.0433
1907,12.8,0.91,0.0061200000000000004,0.049
1908,13.7,0.93,0.00654,0.0523
1909,12.6,0.935,0.006019999999999999,0.0482
1910,13.0,0.966,0.00623,0.0498
1911,12.7,0.99,0.006059999999999999,0.0485
1912,14.1,1.03,0.006719999999999999,0.0538
1913,15.8,1.07,0.007549999999999999,0.060399999999999995
1914,14.9,1.01,0.0071200000000000005,0.057
1915,15.0,1.04,0.00717,0.0573
1916,15.8,1.07,0.007549999999999999,0.060399999999999995
1917,6.79,1.04,0.0032400000000000003,0.0259
1918,8.03,1.02,0.0038399999999999997,0.030699999999999998
1919,7.7,1.04,0.00368,0.0294
1920,10.4,1.09,0.0049900000000000005,0.0399
1921,6.03,1.09,0.0028799999999999997,0.023100000000000002
1922,9.98,1.21,0.00477,0.0381
1923,12.1,1.28,0.0058,0.0464
1924,14.5,1.35,0.00692,0.0554
1925,12.9,1.44,0.00618,0.0495
1926,12.6,1.53,0.00601,0.048100000000000004
1927,17.7,1.62,0.00845,0.0676
1928,16.1,1.67,0.00767,0.061399999999999996
1929,19.1,1.81,0.00915,0.0732
1930,18.7,1.9,0.00893,0.0715
1931,18.7,1.89,0.008960000000000001,0.0717
1932,18.6,1.93,0.00887,0.071
1933,19.4,1.93,0.00926,0.0741
1934,21.5,2.11,0.0103,0.0823
1935,22.6,2.27,0.0108,0.0863
1936,24.7,2.36,0.011800000000000001,0.09459999999999999
1937,28.6,2.47,0.013699999999999999,0.109
1938,25.7,2.6,0.0123,0.0984
1939,28.8,2.78,0.013800000000000002,0.11
1940,18.2,2.52,0.00869,0.0695
1941,14.8,2.53,0.0070599999999999994,0.0565
1942,12.7,2.68,0.00605,0.0484
1943,15.4,2.79,0.00737,0.059
1944,12.0,2.91,0.00571,0.045700000000000005
1945,3.97,3.05,0.00189,0.015099999999999999
1946,16.7,3.25,0.007980000000000001,0.0639
1947,24.4,3.35,0.011699999999999999,0.0933
1948,30.2,3.36,0.0144,0.115
1949,26.1,3.55,0.0125,0.0997
1950,27.8,3.79,0.013300000000000001,0.106
1951,32.6,3.95,0.0155,0.124
1952,33.6,4.16,0.016,0.128
1953,31.5,4.52,0.015,0.12
1954,33.4,4.83,0.016,0.128
1955,38.0,5.16,0.0181,0.145
1956,42.3,5.42,0.0202,0.162
1957,37.8,5.71,0.018,0.144
1958,41.0,6.07,0.019600000000000003,0.157
1959,41.2,6.6,0.019600000000000003,0.157
1960,48.0,6.9,0.0229,0.183
1961,47.5,7.4,0.022699999999999998,0.181
1962,50.0,7.8,0.0238,0.191
1963,53.9,8.36,0.0257,0.206
1964,58.9,9.01,0.0281,0.225
1965,61.0,9.55,0.0291,0.233
1966,71.0,9.99,0.0339,0.271
1967,67.3,10.5,0.032100000000000004,0.257
1968,76.0,10.9,0.0363,0.29
1969,84.8,11.4,0.0405,0.324
1970,90.7,10.2,0.0366,0.286
1971,82.9,9.8,0.0366,0.283
1972,83.1,10.0,0.0366,0.277
1973,85.6,11.3,0.0366,0.273
1974,78.5,10.8,0.0366,0.265
1975,79.6,8.76,0.0366,0.257
1976,87.3,8.78,0.0366,0.252
1977,84.9,8.15,0.0366,0.246
1978,78.7,7.7,0.0366,0.239
1979,84.1,8.45,0.0366,0.233
1980,71.5,7.52,0.0366,0.229
1981,68.7,6.99,0.0366,0.223
1982,61.8,5.8,0.0366,0.218
1983,58.0,5.47,0.0366,0.215
1984,56.8,6.26,0.0366,0.208
1985,61.8,5.98,0.036899999999999995,0.204
1986,61.4,5.93,0.036899999999999995,0.2
1987,59.0,5.9,0.0375,0.193
1988,56.7,6.22,0.0384,0.19
1989,54.8,5.87,0.0402,0.184
1990,51.2,5.95,0.0439,0.178
1991,51.8,5.67,0.0522,0.14
1992,51.9,5.36,0.0583,0.113
1993,51.9,5.46,0.048,0.134
1994,53.9,5.89,0.049100000000000005,0.161
1995,53.0,6.19,0.0427,0.173
1996,57.1,5.98,0.049100000000000005,0.197
1997,52.1,5.88,0.0506,0.178
1998,52.6,5.96,0.0492,0.134
1999,49.8,5.79,0.0482,0.16
2000,48.2,6.26,0.0444,0.16
2001,49.0,6.42,0.0475,0.14
2002,49.8,6.58,0.060700000000000004,0.133
2003,50.8,6.19,0.0813,0.13
2004,49.6,6.68,0.0943,0.123
2005,47.1,6.5,0.09490000000000001,0.117
2006,47.0,6.49,0.0889,0.0896
2007,46.1,6.59,0.0985,0.116
2008,44.3,6.33,0.103,0.105
2009,42.4,4.6,0.105,0.115
2010,46.3,6.48,0.1,0.124
2011,42.7,6.28,0.105,0.124
2012,40.4,6.06,0.126,0.142
2013,38.7,6.08,0.124,0.143
2014,37.2,5.89,0.122,0.123
2015,37.2,5.88,0.119,0.124
2016,36.3,6.4,0.121,0.128
2017,35.9,6.15,0.127,0.128
2018,35.5,5.97,0.124,0.129