year,IPC1,IPC2,IPC4,IPCMAG
1850,0.000203,0.0,1.44e-08,5.05e-07
1851,0.000246,0.0,1.74e-08,6.12e-07
1852,0.000323,0.0,2.29e-08,8.05e-07
1853,0.000421,0.0,2.98e-08,1.05e-06
1854,0.000523,0.0,3.71e-08,1.2999999999999998e-06
1855,0.000615,0.0,4.36e-08,1.53e-06
1856,0.000703,0.0,4.9799999999999996e-08,1.75e-06
1857,0.00079,0.0,5.61e-08,1.9699999999999998e-06
1858,0.000864,0.0,6.13e-08,2.15e-06
1859,0.000916,0.0,6.5e-08,2.2799999999999998e-06
1860,0.00141,0.0,1.0000000000000001e-07,3.5100000000000003e-06
1861,0.00175,0.0,1.24e-07,4.34e-06
1862,0.00159,0.0,1.1299999999999999e-07,3.95e-06
1863,0.0017900000000000001,0.0,1.2699999999999999e-07,4.45e-06
1864,0.0021000000000000003,0.0,1.49e-07,5.22e-06
1865,0.00209,0.0,1.48e-07,5.21e-06
1866,0.00552,0.0,3.9199999999999996e-07,1.3700000000000001e-05
1867,0.00651,0.0,4.6200000000000003e-07,1.62e-05
1868,0.0063,0.0,4.47e-07,1.57e-05
1869,0.00791,0.0,5.61e-07,1.9699999999999998e-05
1870,0.00845,0.0,6e-07,2.1000000000000002e-05
1871,0.0106,0.0,7.52e-07,2.64e-05
1872,0.011,0.0,7.799999999999999e-07,2.7400000000000002e-05
1873,0.0121,0.0,8.61e-07,3.0200000000000002e-05
1874,0.0159,0.0,1.13e-06,3.95e-05
1875,0.0205,0.0,1.4499999999999999e-06,5.0900000000000004e-05
1876,0.0285,0.0,2.02e-06,7.099999999999999e-05
1877,0.0343,0.0,2.43e-06,8.54e-05
1878,0.0429,0.0,3.05e-06,0.000107
1879,0.049,0.0,3.47e-06,0.000122
1880,0.056299999999999996,0.0,4e-06,0.00014000000000000001
1881,0.0696,0.0,4.93e-06,0.00017299999999999998
1882,0.0746,0.0,5.29e-06,0.000186
1883,0.0834,0.0,5.91e-06,0.000207
1884,0.107,0.0,7.62e-06,0.00026700000000000004
1885,0.131,0.0,9.26e-06,0.000325
1886,0.135,0.0,9.58e-06,0.00033600000000000004
1887,0.164,0.0,1.1599999999999999e-05,0.00040699999999999997
1888,0.176,0.0,1.25e-05,0.000437
1889,0.179,0.0,1.2699999999999999e-05,0.00044500000000000003
1890,0.214,0.0,1.52e-05,0.000533
1891,0.256,0.0,1.8200000000000002e-05,0.000638
1892,0.267,0.0,1.9e-05,0.000666
1893,0.316,0.0,2.24e-05,0.000786
1894,0.295,0.0,2.1000000000000002e-05,0.000736
1895,0.39,0.0,2.77e-05,0.000971
1896,0.389,0.0,2.76e-05,0.000969
1897,0.444,0.0,3.15e-05,0.00111
1898,0.501,0.0,3.56e-05,0.00125
1899,0.544,0.0,3.87e-05,0.00136
1900,0.631,0.0,4.48e-05,0.00157
1901,0.696,0.0,4.9500000000000004e-05,0.00174
1902,0.661,0.0,4.6899999999999995e-05,0.00165
1903,0.606,0.0,4.31e-05,0.00151
1904,0.641,0.0,4.55e-05,0.0016
1905,0.493,0.0,3.5000000000000004e-05,0.00123
1906,0.561,0.0,3.99e-05,0.0014
1907,0.602,0.0,4.28e-05,0.0015
1908,0.603,0.0,4.29e-05,0.0015
1909,0.643,0.0,4.57e-05,0.0016
1910,0.657,0.0,4.67e-05,0.00164
1911,0.636,3.7900000000000006e-05,4.5199999999999994e-05,0.00159
1912,0.667,0.000146,4.74e-05,0.00166
1913,0.669,0.000315,4.7600000000000005e-05,0.0016699999999999998
1914,0.667,0.000536,4.74e-05,0.00166
1915,0.695,0.0008010000000000001,4.94e-05,0.00173
1916,0.742,0.0011,5.28e-05,0.00185
1917,0.665,0.0014299999999999998,4.7300000000000005e-05,0.00166
1918,0.277,0.00177,1.9699999999999998e-05,0.000691
1919,0.308,0.00212,2.19e-05,0.000769
1920,0.273,0.0024700000000000004,1.94e-05,0.0006810000000000001
1921,0.272,0.00285,1.93e-05,0.000678
1922,0.333,0.00328,2.37e-05,0.00083
1923,0.372,0.00376,2.64e-05,0.000928
1924,0.398,0.0043,2.83e-05,0.000992
1925,0.417,0.00487,2.96e-05,0.0010400000000000001
1926,0.521,0.0055,3.7e-05,0.0013
1927,0.632,0.0273,4.49e-05,0.00157
1928,0.639,0.026199999999999998,4.53e-05,0.00159
1929,0.755,0.0315,5.36e-05,0.00188
1930,1.29,0.039799999999999995,9.2e-05,0.00323
1931,1.56,0.0428,0.000111,0.0039
1932,1.54,0.0448,0.00010899999999999999,0.0038399999999999997
1933,1.6,0.0384,0.00011300000000000001,0.00398
1934,1.84,0.0476,0.000131,0.0045899999999999995
1935,1.98,0.058,0.00014000000000000001,0.0049299999999999995
1936,2.18,0.0731,0.000155,0.00545
1937,2.27,0.0709,0.000161,0.00566
1938,2.4,0.0751,0.000171,0.006
1939,2.42,0.07640000000000001,0.00017199999999999998,0.00604
1940,2.62,0.0765,0.000186,0.00653
1941,2.55,0.0778,0.00018099999999999998,0.00637
1942,2.24,0.0693,0.00015900000000000002,0.0055899999999999995
1943,2.2,0.0608,0.000156,0.0054800000000000005
1944,2.71,0.0523,0.000192,0.00675
1945,1.76,0.0439,0.000125,0.00439
1946,2.0,0.060899999999999996,0.00014199999999999998,0.005
1947,2.43,0.0762,0.00017199999999999998,0.00605
1948,2.65,0.09559999999999999,0.000189,0.00662
1949,3.06,0.111,0.00021799999999999999,0.00764
1950,3.41,0.138,0.000243,0.00852
1951,3.69,0.161,0.000262,0.0092
1952,4.08,0.185,0.00029,0.010199999999999999
1953,4.44,0.213,0.000315,0.0111
1954,4.9,0.255,0.000348,0.012199999999999999
1955,5.66,0.302,0.000402,0.0141
1956,6.46,0.34,0.00045900000000000004,0.0161
1957,7.26,0.395,0.000516,0.0181
1958,8.05,0.453,0.0005719999999999999,0.0201
1959,8.73,0.522,0.00062,0.0218
1960,9.45,0.602,0.000671,0.023600000000000003
1961,10.2,0.669,0.000722,0.0253
1962,11.2,0.748,0.000798,0.028
1963,12.3,0.801,0.000874,0.030699999999999998
1964,13.3,0.856,0.000941,0.033
1965,14.2,0.947,0.00101,0.0353
1966,15.2,1.04,0.00108,0.0378
1967,16.4,1.1,0.00116,0.040799999999999996
1968,17.3,1.15,0.00123,0.0432
1969,18.4,1.19,0.00131,0.046
1970,19.8,1.28,0.00133,0.0427
1971,21.1,1.41,0.00139,0.0453
1972,22.7,1.53,0.00146,0.047799999999999995
1973,24.2,1.66,0.00155,0.051
1974,25.8,1.8,0.00163,0.0533
1975,27.3,2.0,0.0017,0.055
1976,28.2,2.13,0.0017900000000000001,0.054299999999999994
1977,29.2,2.25,0.00186,0.0525
1978,31.1,2.32,0.0019399999999999999,0.0533
1979,31.5,2.35,0.002,0.0516
1980,32.4,2.42,0.00206,0.0522
1981,32.7,2.5,0.00212,0.054299999999999994
1982,33.0,2.56,0.00218,0.06
1983,33.3,2.73,0.0022400000000000002,0.061
1984,33.0,2.82,0.00228,0.0616
1985,34.0,2.93,0.00234,0.063
1986,34.0,3.2,0.0024,0.0665
1987,35.1,3.33,0.00246,0.069
1988,35.4,3.42,0.00252,0.065
1989,35.0,3.44,0.00257,0.0613
1990,32.3,3.47,0.00266,0.056299999999999996
1991,34.3,3.46,0.00266,0.0624
1992,19.3,1.87,0.000742,0.0354
1993,15.4,0.915,0.00214,0.00994
1994,14.5,1.27,0.000657,0.009859999999999999
1995,13.6,1.48,0.0025099999999999996,0.0108
1996,14.1,1.64,0.000853,0.026699999999999998
1997,13.6,1.52,0.0008539999999999999,0.0268
1998,14.4,1.65,0.0009429999999999999,0.027899999999999998
1999,11.9,1.52,0.00040899999999999997,0.0256
2000,10.4,1.45,0.00113,0.0242
2001,11.1,1.53,0.0015400000000000001,0.0228
2002,11.1,1.56,0.00138,0.028399999999999998
2003,11.1,1.55,0.0037,0.0277
2004,11.7,1.52,0.00191,0.027600000000000003
2005,12.5,1.53,0.0036,0.0385
2006,12.6,1.8,0.00329,0.026199999999999998
2007,12.8,2.94,0.00066,0.038299999999999994
2008,12.7,2.45,0.000641,0.03
2009,11.6,1.42,0.0007,0.0431
2010,12.5,1.39,0.00146,0.0221
2011,11.7,2.53,0.00445,0.0229
2012,11.7,2.62,0.00102,0.0254
2013,11.1,2.23,0.000772,0.0325
2014,10.7,2.36,0.00196,0.0658
2015,10.6,2.65,0.005719999999999999,0.037200000000000004
2016,10.9,2.37,0.000639,0.032299999999999995
2017,10.9,2.67,0.00126,0.0263
2018,11.2,2.4,0.000869,0.0258