year,IPC1,IPC2,IPC4,IPCMAG
1850,0.15,0.00357,1.15e-05,0.0024700000000000004
1851,0.158,0.00376,1.21e-05,0.00261
1852,0.167,0.00396,1.2699999999999999e-05,0.00275
1853,0.176,0.00418,1.34e-05,0.0029
1854,0.186,0.00441,1.4200000000000001e-05,0.0030600000000000002
1855,0.196,0.0046500000000000005,1.49e-05,0.00322
1856,0.207,0.004900000000000001,1.58e-05,0.0034
1857,0.218,0.00517,1.66e-05,0.0035800000000000003
1858,0.229,0.00544,1.7500000000000002e-05,0.00377
1859,0.241,0.005719999999999999,1.84e-05,0.0039700000000000004
1860,0.254,0.00601,1.93e-05,0.00417
1861,0.266,0.00632,2.03e-05,0.00438
1862,0.28,0.00663,2.13e-05,0.0046
1863,0.294,0.00697,2.24e-05,0.00483
1864,0.308,0.00731,2.35e-05,0.00507
1865,0.324,0.007679999999999999,2.47e-05,0.00532
1866,0.34,0.00805,2.59e-05,0.00558
1867,0.356,0.00845,2.7099999999999998e-05,0.005860000000000001
1868,0.374,0.00886,2.85e-05,0.00614
1869,0.392,0.00929,2.98e-05,0.00644
1870,0.41,0.00974,3.13e-05,0.00675
1871,0.43,0.010199999999999999,3.2800000000000004e-05,0.00708
1872,0.452,0.0107,3.44e-05,0.00743
1873,0.474,0.0112,3.61e-05,0.0078
1874,0.498,0.011800000000000001,3.7900000000000006e-05,0.00819
1875,0.523,0.0124,3.9800000000000005e-05,0.00859
1876,0.548,0.013,4.18e-05,0.00901
1877,0.575,0.0136,4.38e-05,0.00945
1878,0.602,0.0143,4.5900000000000004e-05,0.009890000000000001
1879,0.629,0.0149,4.8e-05,0.0104
1880,0.658,0.0156,5.01e-05,0.0108
1881,0.686,0.016300000000000002,5.23e-05,0.011300000000000001
1882,0.716,0.017,5.4600000000000006e-05,0.011800000000000001
1883,0.746,0.0177,5.69e-05,0.0123
1884,0.778,0.0185,5.93e-05,0.0128
1885,0.81,0.0192,6.18e-05,0.013300000000000001
1886,1.06,0.0251,8.060000000000001e-05,0.0174
1887,1.09,0.0257,8.269999999999999e-05,0.0178
1888,0.891,0.0211,6.79e-05,0.0147
1889,1.76,0.0417,0.000134,0.0289
1890,1.37,0.0285,0.00010499999999999999,0.022600000000000002
1891,0.939,0.0285,7.149999999999999e-05,0.0154
1892,1.39,0.0285,0.000106,0.0228
1893,1.55,0.0285,0.000118,0.0256
1894,1.99,0.0285,0.000152,0.032799999999999996
1895,2.27,0.0285,0.00017299999999999998,0.0373
1896,2.31,0.0285,0.000176,0.037899999999999996
1897,2.08,0.0285,0.00015900000000000002,0.0342
1898,2.35,0.0285,0.000179,0.038700000000000005
1899,2.92,0.0285,0.000223,0.048100000000000004
1900,2.07,0.0285,0.000158,0.0341
1901,2.49,0.0285,0.00019,0.041
1902,2.82,0.0285,0.000215,0.046299999999999994
1903,2.86,0.0285,0.00021799999999999999,0.0471
1904,3.8,0.0285,0.000289,0.0625
1905,3.99,0.0286,0.000304,0.0655
1906,6.26,0.0286,0.000477,0.103
1907,6.26,0.0286,0.000477,0.103
1908,7.62,0.0286,0.0005809999999999999,0.125
1909,5.94,0.0286,0.000453,0.09770000000000001
1910,8.92,0.0286,0.00068,0.147
1911,9.95,0.0286,0.000758,0.164
1912,9.49,0.0286,0.000723,0.156
1913,10.2,0.0286,0.000773,0.167
1914,8.69,0.0286,0.000661,0.143
1915,6.96,0.0286,0.0005290000000000001,0.114
1916,5.01,0.0286,0.00038,0.082
1917,2.26,0.0286,0.00017,0.0367
1918,2.55,0.0286,0.000192,0.0415
1919,3.76,0.0286,0.00028399999999999996,0.0613
1920,5.92,0.0286,0.000449,0.097
1921,5.57,0.0295,0.000422,0.0912
1922,7.34,0.032100000000000004,0.0005570000000000001,0.12
1923,8.48,0.0361,0.000644,0.139
1924,11.0,0.041299999999999996,0.0008359999999999999,0.18
1925,11.3,0.0475,0.000857,0.185
1926,11.3,0.0545,0.000858,0.185
1927,13.4,0.179,0.00102,0.22
1928,12.7,0.186,0.000963,0.208
1929,13.0,0.252,0.000988,0.213
1930,12.6,0.275,0.000959,0.207
1931,12.6,0.359,0.000959,0.207
1932,12.9,0.35,0.00098,0.212
1933,13.0,0.367,0.000989,0.214
1934,14.0,0.404,0.00106,0.23
1935,13.7,0.492,0.0010400000000000001,0.224
1936,14.7,0.559,0.0011200000000000001,0.242
1937,16.2,0.674,0.00124,0.267
1938,15.8,0.79,0.0012,0.259
1939,16.9,0.748,0.00128,0.277
1940,15.4,0.743,0.00117,0.252
1941,13.4,0.806,0.00102,0.22
1942,13.0,0.78,0.000987,0.213
1943,13.7,0.747,0.0010400000000000001,0.224
1944,13.5,0.836,0.00102,0.221
1945,13.2,0.869,0.001,0.216
1946,13.2,0.926,0.001,0.216
1947,13.9,1.07,0.00106,0.228
1948,16.9,1.05,0.00128,0.276
1949,14.7,1.18,0.0011200000000000001,0.241
1950,29.2,1.28,0.00222,0.48
1951,34.3,1.32,0.00261,0.563
1952,35.4,1.36,0.00269,0.581
1953,34.4,1.46,0.00262,0.565
1954,36.0,1.54,0.0027400000000000002,0.591
1955,38.8,1.67,0.0029500000000000004,0.636
1956,43.4,1.83,0.0033,0.712
1957,46.6,2.04,0.00354,0.764
1958,43.1,2.15,0.00328,0.707
1959,48.0,2.17,0.00364,0.786
1960,47.6,2.38,0.00362,0.781
1961,49.9,2.59,0.00379,0.818
1962,52.4,2.68,0.00398,0.859
1963,49.0,2.57,0.00372,0.803
1964,54.5,2.85,0.00414,0.893
1965,57.4,3.14,0.00436,0.941
1966,61.6,3.34,0.0045,0.971
1967,64.0,3.49,0.0046500000000000005,1.0
1968,67.2,3.92,0.004889999999999999,1.05
1969,75.4,4.14,0.00551,1.19
1970,80.6,4.24,0.00524,1.01
1971,86.4,4.61,0.00524,1.12
1972,87.6,4.65,0.00535,1.22
1973,91.9,4.54,0.0054800000000000005,1.12
1974,93.6,4.58,0.0056,0.789
1975,92.9,4.54,0.005719999999999999,0.619
1976,97.7,4.77,0.00584,0.644
1977,98.0,4.93,0.00595,0.796
1978,101.0,5.14,0.00607,0.975
1979,109.0,5.49,0.00619,0.975
1980,106.0,5.59,0.00631,0.95
1981,99.6,5.21,0.00644,0.586
1982,101.0,4.64,0.00658,0.69
1983,103.0,4.62,0.006719999999999999,0.638
1984,105.0,4.5,0.006860000000000001,0.773
1985,98.8,4.23,0.007,0.628
1986,105.0,4.69,0.00714,0.704
1987,115.0,5.18,0.00729,0.675
1988,121.0,5.1,0.00743,0.771
1989,117.0,4.43,0.00757,0.632
1990,113.0,3.9,0.00771,0.731
1991,117.0,3.75,0.00785,0.743
1992,121.0,4.42,0.007980000000000001,1.21
1993,116.0,4.74,0.00811,1.1
1994,120.0,5.07,0.00824,1.57
1995,126.0,4.83,0.00836,2.19
1996,133.0,4.67,0.00848,2.79
1997,135.0,5.46,0.0086,3.1
1998,137.0,5.64,0.00872,2.65
1999,144.0,5.58,0.00883,3.23
2000,140.0,5.72,0.00895,3.28
2001,131.0,6.2,0.00907,3.33
2002,123.0,5.74,0.00919,2.97
2003,133.0,6.76,0.00931,5.93
2004,155.0,7.19,0.00943,6.44
2005,159.0,7.57,0.009550000000000001,6.24
2006,172.0,8.24,0.00967,6.56
2007,171.0,8.74,0.009789999999999998,6.8
2008,186.0,8.82,0.0099,6.86
2009,176.0,8.22,0.01,5.33
2010,183.0,8.92,0.0101,5.72
2011,186.0,9.36,0.0103,5.94
2012,188.0,9.03,0.0106,6.02
2013,186.0,9.63,0.0107,6.69
2014,201.0,9.34,0.0109,8.37
2015,205.0,9.14,0.011,5.89
2016,205.0,8.96,0.0112,6.1
2017,201.0,8.96,0.011300000000000001,6.14
2018,199.0,9.04,0.0115,6.17