year,IPC1,IPC2,IPC4,IPCMAG
1850,0.000716,0.00159,7.36e-06,9.37e-06
1851,0.000753,0.0016699999999999998,7.74e-06,9.87e-06
1852,0.000794,0.00176,8.16e-06,1.0399999999999999e-05
1853,0.000837,0.00186,8.609999999999999e-06,1.1e-05
1854,0.000884,0.00196,9.08e-06,1.1599999999999999e-05
1855,0.0009320000000000001,0.00207,9.58e-06,1.22e-05
1856,0.000983,0.00218,1.01e-05,1.29e-05
1857,0.0010400000000000001,0.0023,1.06e-05,1.3599999999999999e-05
1858,0.00109,0.00242,1.12e-05,1.43e-05
1859,0.00115,0.00254,1.18e-05,1.4999999999999999e-05
1860,0.00121,0.00267,1.24e-05,1.58e-05
1861,0.00127,0.00281,1.3e-05,1.66e-05
1862,0.00133,0.0029500000000000004,1.3700000000000001e-05,1.74e-05
1863,0.0014,0.0031,1.44e-05,1.83e-05
1864,0.00147,0.00325,1.5100000000000001e-05,1.92e-05
1865,0.0015400000000000001,0.0034100000000000003,1.58e-05,2.02e-05
1866,0.00161,0.0035800000000000003,1.66e-05,2.11e-05
1867,0.0016899999999999999,0.00376,1.74e-05,2.22e-05
1868,0.0017800000000000001,0.00394,1.83e-05,2.33e-05
1869,0.00186,0.00413,1.91e-05,2.44e-05
1870,0.00195,0.00433,2.01e-05,2.5600000000000002e-05
1871,0.0020499999999999997,0.00454,2.1000000000000002e-05,2.68e-05
1872,0.00215,0.0047599999999999995,2.2100000000000002e-05,2.81e-05
1873,0.00225,0.005,2.3199999999999998e-05,2.95e-05
1874,0.00237,0.00525,2.4299999999999998e-05,3.1e-05
1875,0.00248,0.00551,2.55e-05,3.2500000000000004e-05
1876,0.00261,0.00578,2.68e-05,3.4099999999999995e-05
1877,0.00273,0.006059999999999999,2.81e-05,3.5799999999999996e-05
1878,0.0028599999999999997,0.00634,2.94e-05,3.75e-05
1879,0.00299,0.00663,3.08e-05,3.92e-05
1880,0.00313,0.0069299999999999995,3.2099999999999994e-05,4.1e-05
1881,0.00326,0.00724,3.36e-05,4.27e-05
1882,0.0034,0.007549999999999999,3.5000000000000004e-05,4.46e-05
1883,0.0035499999999999998,0.00787,3.65e-05,4.65e-05
1884,0.0037,0.008199999999999999,3.8e-05,4.84e-05
1885,0.00385,0.008539999999999999,3.96e-05,5.05e-05
1886,0.00401,0.0089,4.13e-05,5.26e-05
1887,0.00418,0.009269999999999999,4.2999999999999995e-05,5.47e-05
1888,0.00435,0.00965,4.4699999999999996e-05,5.7e-05
1889,0.00429,0.0095,4.41e-05,5.6099999999999995e-05
1890,0.0171,0.00976,0.000176,0.000225
1891,0.0257,0.00977,0.000264,0.000337
1892,0.219,0.00985,0.00225,0.0028599999999999997
1893,0.476,0.009949999999999999,0.004889999999999999,0.00623
1894,0.561,0.009980000000000001,0.00577,0.00735
1895,0.895,0.0101,0.0092,0.011699999999999999
1896,1.01,0.010199999999999999,0.0103,0.0132
1897,1.29,0.0103,0.013300000000000001,0.0169
1898,1.51,0.0104,0.0155,0.0197
1899,1.32,0.0103,0.0135,0.0172
1900,1.41,0.0103,0.0145,0.0185
1901,2.62,0.0108,0.0269,0.0343
1902,1.8,0.0105,0.0185,0.023600000000000003
1903,3.51,0.0112,0.0361,0.045899999999999996
1904,3.94,0.0114,0.0405,0.0515
1905,4.83,0.011699999999999999,0.0497,0.0633
1906,5.2,0.0119,0.0535,0.0682
1907,6.19,0.0123,0.0636,0.08109999999999999
1908,6.42,0.0124,0.066,0.0841
1909,7.0,0.0127,0.0719,0.0917
1910,7.14,0.0127,0.0734,0.09359999999999999
1911,7.86,0.013099999999999999,0.0808,0.103
1912,6.83,0.0127,0.0702,0.08940000000000001
1913,6.9,0.0128,0.0709,0.09029999999999999
1914,7.03,0.0129,0.0723,0.09209999999999999
1915,7.05,0.013,0.0725,0.0923
1916,7.91,0.0134,0.0813,0.104
1917,8.34,0.013699999999999999,0.0858,0.109
1918,8.34,0.013699999999999999,0.0857,0.109
1919,8.93,0.0141,0.09179999999999999,0.117
1920,9.66,0.0144,0.0993,0.127
1921,10.2,0.0147,0.105,0.134
1922,9.7,0.0146,0.0997,0.127
1923,11.2,0.0152,0.115,0.147
1924,12.4,0.0158,0.127,0.162
1925,13.0,0.0161,0.133,0.17
1926,13.0,0.0161,0.133,0.17
1927,15.1,0.017,0.155,0.197
1928,17.3,0.018,0.178,0.227
1929,21.6,0.1,0.222,0.283
1930,21.1,0.096,0.216,0.276
1931,19.7,0.0915,0.202,0.258
1932,19.3,0.0634,0.199,0.253
1933,20.8,0.0601,0.214,0.273
1934,22.4,0.0809,0.23,0.294
1935,23.3,0.0975,0.239,0.305
1936,25.4,0.0945,0.261,0.332
1937,29.6,0.103,0.305,0.388
1938,31.2,0.111,0.321,0.409
1939,34.0,0.119,0.35,0.446
1940,33.6,0.119,0.345,0.44
1941,30.9,0.119,0.317,0.404
1942,11.1,0.0975,0.114,0.145
1943,22.2,0.08979999999999999,0.229,0.291
1944,10.3,0.0735,0.105,0.134
1945,4.45,0.0605,0.045700000000000005,0.0583
1946,1.57,0.0494,0.0162,0.0206
1947,4.74,0.0414,0.0487,0.062
1948,18.1,0.069,0.186,0.237
1949,25.6,0.09079999999999999,0.263,0.335
1950,11.5,0.104,0.118,0.15
1951,10.9,0.127,0.112,0.143
1952,14.8,0.166,0.152,0.194
1953,15.2,0.192,0.156,0.199
1954,17.2,0.221,0.176,0.225
1955,24.3,0.257,0.25,0.318
1956,25.4,0.294,0.261,0.333
1957,26.1,0.392,0.268,0.341
1958,25.8,0.465,0.265,0.338
1959,27.7,0.538,0.285,0.363
1960,24.8,0.612,0.255,0.325
1961,30.1,0.706,0.31,0.395
1962,26.6,0.81,0.273,0.348
1963,26.4,0.801,0.272,0.346
1964,25.9,0.962,0.266,0.339
1965,28.6,1.04,0.294,0.375
1966,27.1,1.15,0.279,0.355
1967,28.5,1.3,0.293,0.373
1968,32.0,1.5,0.329,0.419
1969,38.7,1.74,0.398,0.507
1970,46.8,1.6,0.393,0.417
1971,51.0,1.61,0.393,0.48
1972,59.0,1.71,0.414,0.579
1973,66.5,1.89,0.437,0.748
1974,70.8,2.11,0.461,0.93
1975,72.7,2.32,0.486,0.841
1976,84.3,2.68,0.512,0.926
1977,121.0,3.61,0.539,1.22
1978,138.0,5.48,0.567,1.38
1979,140.0,5.16,0.597,1.59
1980,126.0,6.48,0.628,2.38
1981,131.0,7.19,0.664,2.49
1982,134.0,7.82,0.701,2.84
1983,130.0,11.6,0.743,2.79
1984,136.0,14.5,0.785,3.35
1985,146.0,16.2,0.828,3.54
1986,146.0,17.5,0.874,3.67
1987,148.0,18.4,0.921,4.07
1988,160.0,18.0,0.968,4.36
1989,156.0,20.0,1.02,4.15
1990,180.0,20.6,1.07,4.45
1991,200.0,22.5,1.12,4.34
1992,213.0,24.7,1.18,4.62
1993,226.0,29.8,1.24,4.46
1994,233.0,32.3,1.3,4.52
1995,246.0,35.1,1.37,4.88
1996,261.0,37.7,1.43,5.23
1997,275.0,40.3,1.5,4.67
1998,290.0,43.7,1.57,4.84
1999,286.0,45.4,1.64,4.82
2000,289.0,42.4,1.78,4.77
2001,313.0,47.8,1.8,4.5
2002,321.0,41.2,1.82,4.52
2003,350.0,40.9,1.84,4.81
2004,353.0,42.7,1.86,5.11
2005,350.0,41.8,1.88,5.3
2006,359.0,38.1,1.9,5.27
2007,376.0,35.4,1.89,5.64
2008,365.0,36.0,1.96,5.86
2009,378.0,37.1,1.98,6.31
2010,424.0,35.7,2.16,6.22
2011,476.0,35.7,2.18,6.44
2012,509.0,39.6,2.21,6.62
2013,466.0,38.6,2.26,6.48
2014,500.0,47.0,2.31,6.76
2015,505.0,47.9,2.37,6.71
2016,506.0,53.9,2.43,6.82
2017,530.0,55.6,2.49,6.78
2018,583.0,57.1,2.55,6.73