year,IPC1,IPC2,IPC4,IPCMAG
1850,0.169,0.0145,0.000304,0.000419
1851,0.178,0.015300000000000001,0.00032,0.000441
1852,0.188,0.0161,0.00033800000000000003,0.000465
1853,0.198,0.017,0.000356,0.00049
1854,0.209,0.0179,0.000376,0.000517
1855,0.221,0.0189,0.00039600000000000003,0.000546
1856,0.233,0.02,0.00041799999999999997,0.000575
1857,0.245,0.021,0.00044,0.000606
1858,0.258,0.0222,0.000464,0.000638
1859,0.272,0.0233,0.000488,0.0006720000000000001
1860,0.0298,0.00256,5.35e-05,7.37e-05
1861,0.681,0.0585,0.00122,0.0016899999999999999
1862,1.25,0.107,0.0022400000000000002,0.0030800000000000003
1863,1.09,0.0933,0.00195,0.00269
1864,1.63,0.14,0.0029300000000000003,0.004030000000000001
1865,1.29,0.111,0.00232,0.0032
1866,1.5,0.129,0.0027,0.0037099999999999998
1867,1.49,0.128,0.00268,0.00369
1868,1.72,0.148,0.0031,0.00426
1869,1.9,0.163,0.00342,0.00471
1870,2.72,0.234,0.004889999999999999,0.006730000000000001
1871,2.35,0.201,0.00421,0.0058
1872,3.02,0.259,0.00542,0.00747
1873,2.81,0.242,0.005059999999999999,0.00696
1874,3.04,0.261,0.00547,0.00753
1875,3.12,0.267,0.0056,0.00771
1876,4.17,0.358,0.0075,0.0103
1877,3.86,0.332,0.00694,0.00956
1878,3.85,0.33,0.00691,0.00951
1879,4.42,0.38,0.007940000000000001,0.0109
1880,5.15,0.442,0.00925,0.0127
1881,6.05,0.519,0.0109,0.015
1882,6.37,0.547,0.0114,0.0158
1883,6.75,0.58,0.0121,0.0167
1884,7.48,0.642,0.0134,0.0185
1885,8.51,0.73,0.015300000000000001,0.0211
1886,8.46,0.726,0.0152,0.0209
1887,10.3,0.885,0.0185,0.0255
1888,11.1,0.95,0.019899999999999998,0.027399999999999997
1889,11.4,0.982,0.0205,0.028300000000000002
1890,12.4,0.947,0.0223,0.030699999999999998
1891,11.2,0.949,0.0201,0.027600000000000003
1892,11.1,0.951,0.019899999999999998,0.027399999999999997
1893,10.7,0.954,0.0192,0.0264
1894,13.3,0.957,0.0238,0.032799999999999996
1895,12.2,0.96,0.0219,0.030199999999999998
1896,11.6,0.964,0.0209,0.0287
1897,12.1,0.968,0.0218,0.03
1898,12.6,0.972,0.022600000000000002,0.0312
1899,13.8,0.976,0.0248,0.0342
1900,14.1,0.981,0.0254,0.035
1901,13.7,0.985,0.0247,0.034
1902,15.3,0.99,0.027399999999999997,0.037700000000000004
1903,15.6,0.996,0.028,0.0385
1904,16.4,1.0,0.0295,0.0407
1905,18.1,1.01,0.032600000000000004,0.0448
1906,21.4,1.02,0.0385,0.053
1907,23.2,1.02,0.0416,0.0573
1908,23.6,1.03,0.0425,0.0585
1909,26.1,1.04,0.0469,0.06459999999999999
1910,26.2,1.05,0.047,0.06470000000000001
1911,27.0,1.06,0.0484,0.06670000000000001
1912,28.3,1.07,0.0508,0.07
1913,30.5,1.08,0.054700000000000006,0.07529999999999999
1914,27.7,1.09,0.0497,0.0685
1915,24.2,1.1,0.0434,0.0598
1916,23.9,1.11,0.0429,0.0591
1917,16.4,1.13,0.0294,0.0405
1918,19.3,1.15,0.0346,0.047700000000000006
1919,18.9,1.17,0.034,0.046799999999999994
1920,18.2,1.19,0.032600000000000004,0.044899999999999995
1921,22.2,1.22,0.0399,0.055
1922,26.1,1.28,0.0469,0.06459999999999999
1923,27.3,1.34,0.049,0.0674
1924,32.7,1.42,0.0587,0.0809
1925,31.5,1.51,0.0565,0.0778
1926,36.4,1.61,0.0654,0.0901
1927,41.0,3.72,0.0737,0.102
1928,37.2,3.85,0.0669,0.09209999999999999
1929,43.0,4.23,0.0772,0.106
1930,38.5,4.3,0.069,0.09509999999999999
1931,33.2,4.1,0.0596,0.08209999999999999
1932,27.0,4.21,0.0484,0.06670000000000001
1933,29.2,4.57,0.052399999999999995,0.0722
1934,38.3,5.0,0.0687,0.09459999999999999
1935,44.0,5.17,0.079,0.109
1936,30.6,4.98,0.0549,0.0756
1937,43.8,5.41,0.0785,0.108
1938,43.5,5.65,0.07790000000000001,0.107
1939,44.4,6.06,0.07959999999999999,0.11
1940,47.5,5.92,0.0852,0.117
1941,42.3,4.64,0.07579999999999999,0.104
1942,41.6,4.32,0.07440000000000001,0.103
1943,6.53,4.01,0.0114,0.0158
1944,3.13,3.82,0.00532,0.00732
1945,4.03,3.72,0.00691,0.00951
1946,21.7,4.37,0.0386,0.053200000000000004
1947,36.2,4.91,0.06470000000000001,0.0891
1948,34.8,5.24,0.062,0.0854
1949,38.6,5.91,0.0689,0.09490000000000001
1950,39.9,6.66,0.0711,0.0979
1951,47.1,7.18,0.0841,0.116
1952,48.5,8.11,0.0864,0.119
1953,53.4,9.16,0.09509999999999999,0.131
1954,62.2,10.1,0.111,0.152
1955,69.8,11.7,0.124,0.171
1956,79.9,12.6,0.142,0.196
1957,83.3,13.4,0.148,0.204
1958,83.5,14.4,0.148,0.204
1959,89.4,15.9,0.159,0.219
1960,104.0,17.4,0.185,0.255
1961,118.0,19.2,0.211,0.29
1962,140.0,21.1,0.249,0.343
1963,157.0,22.9,0.28,0.386
1964,168.0,24.0,0.3,0.413
1965,183.0,23.2,0.327,0.451
1966,207.0,24.9,0.37,0.51
1967,226.0,28.0,0.404,0.556
1968,240.0,30.7,0.428,0.59
1969,259.0,32.5,0.464,0.639
1970,286.0,32.3,0.451,0.55
1971,301.0,31.0,0.461,0.579
1972,318.0,32.6,0.474,0.639
1973,342.0,34.9,0.492,0.648
1974,347.0,34.7,0.509,0.654
1975,331.0,32.0,0.508,0.609
1976,355.0,33.7,0.528,0.562
1977,343.0,34.3,0.54,0.686
1978,361.0,34.5,0.553,0.809
1979,375.0,34.7,0.572,0.791
1980,375.0,35.6,0.585,0.723
1981,364.0,34.4,0.594,0.631
1982,357.0,31.6,0.601,0.641
1983,349.0,30.6,0.61,0.645
1984,356.0,30.4,0.623,0.623
1985,361.0,29.3,0.636,0.651
1986,356.0,28.8,0.648,0.676
1987,374.0,29.3,0.662,0.622
1988,381.0,29.7,0.679,0.523
1989,399.0,30.2,0.694,0.482
1990,408.0,29.4,0.512,0.466
1991,408.0,29.0,0.537,0.521
1992,407.0,29.6,0.536,0.538
1993,403.0,26.5,0.496,0.623
1994,398.0,25.6,0.499,0.59
1995,420.0,27.3,0.458,0.513
1996,416.0,24.9,0.458,0.441
1997,422.0,25.0,0.482,0.527
1998,434.0,25.0,0.475,0.528
1999,438.0,25.1,0.398,0.553
2000,442.0,25.9,0.208,0.527
2001,441.0,26.6,0.229,0.541
2002,449.0,26.5,0.177,0.567
2003,466.0,27.4,0.202,0.571
2004,471.0,28.3,0.185,0.586
2005,470.0,28.8,0.23,0.521
2006,466.0,28.8,0.244,0.551
2007,458.0,29.1,0.213,0.553
2008,449.0,26.7,0.206,0.517
2009,401.0,21.3,0.248,0.389
2010,411.0,21.8,0.177,0.353
2011,400.0,21.3,0.177,0.376
2012,383.0,18.1,0.202,0.567
2013,351.0,16.4,0.224,0.465
2014,332.0,15.7,0.117,0.423
2015,345.0,15.0,0.0987,0.438
2016,341.0,14.8,0.103,0.539
2017,336.0,15.0,0.09209999999999999,0.436
2018,332.0,15.3,0.0915,0.421