year,IPC1,IPC2,IPC4,IPCMAG
1850,0.00447,0.00030199999999999997,1.74e-07,7.68e-05
1851,0.00471,0.00031800000000000003,1.83e-07,8.09e-05
1852,0.00496,0.000335,1.93e-07,8.52e-05
1853,0.00524,0.00035299999999999996,2.03e-07,8.989999999999999e-05
1854,0.00552,0.000373,2.14e-07,9.49e-05
1855,0.00583,0.000393,2.2599999999999999e-07,0.0001
1856,0.00615,0.000414,2.3800000000000001e-07,0.000106
1857,0.0064800000000000005,0.000437,2.5099999999999996e-07,0.000111
1858,0.0068200000000000005,0.00046,2.65e-07,0.00011700000000000001
1859,0.00717,0.000484,2.78e-07,0.000123
1860,0.00754,0.000508,2.92e-07,0.000129
1861,0.00792,0.0005340000000000001,3.07e-07,0.000136
1862,0.008320000000000001,0.0005610000000000001,3.2299999999999997e-07,0.00014299999999999998
1863,0.00873,0.000589,3.39e-07,0.00015
1864,0.00917,0.000618,3.5599999999999996e-07,0.000157
1865,0.00962,0.0006490000000000001,3.73e-07,0.000165
1866,0.0101,0.0006810000000000001,3.9199999999999996e-07,0.00017299999999999998
1867,0.0106,0.000714,4.11e-07,0.000182
1868,0.0111,0.000749,4.3100000000000003e-07,0.000191
1869,0.0116,0.000785,4.5199999999999997e-07,0.0002
1870,0.012199999999999999,0.000823,4.73e-07,0.00020999999999999998
1871,0.0128,0.0008629999999999999,4.96e-07,0.00022
1872,0.0134,0.000906,5.21e-07,0.000231
1873,0.0141,0.0009509999999999999,5.469999999999999e-07,0.000242
1874,0.0148,0.000998,5.739999999999999e-07,0.000254
1875,0.0155,0.0010500000000000002,6.03e-07,0.00026700000000000004
1876,0.016300000000000002,0.0011,6.319999999999999e-07,0.00028000000000000003
1877,0.0171,0.00115,6.629999999999999e-07,0.00029299999999999997
1878,0.0179,0.00121,6.939999999999999e-07,0.000307
1879,0.018699999999999998,0.00126,7.26e-07,0.000321
1880,0.019600000000000003,0.00132,7.590000000000001e-07,0.00033600000000000004
1881,0.020399999999999998,0.00138,7.92e-07,0.00035
1882,0.0213,0.0014399999999999999,8.26e-07,0.000366
1883,0.0222,0.0015,8.61e-07,0.000381
1884,0.023100000000000002,0.00156,8.97e-07,0.000397
1885,0.0241,0.00163,9.349999999999999e-07,0.000414
1886,0.0251,0.0016899999999999999,9.740000000000001e-07,0.000431
1887,0.0261,0.00176,1.01e-06,0.000449
1888,0.0272,0.00184,1.06e-06,0.000467
1889,0.028300000000000002,0.00191,1.1e-06,0.000486
1890,0.0322,0.00189,1.25e-06,0.000553
1891,0.0335,0.00189,1.2999999999999998e-06,0.0005759999999999999
1892,0.035,0.00189,1.3600000000000001e-06,0.000601
1893,0.0367,0.0019,1.42e-06,0.00063
1894,0.0385,0.0019,1.49e-06,0.000661
1895,0.0404,0.0019,1.57e-06,0.000695
1896,0.0425,0.00191,1.65e-06,0.00073
1897,0.044700000000000004,0.00191,1.73e-06,0.000768
1898,0.047,0.00191,1.82e-06,0.0008070000000000001
1899,0.0494,0.0019199999999999998,1.9200000000000003e-06,0.000848
1900,0.0518,0.0019199999999999998,2.0100000000000002e-06,0.0008900000000000001
1901,0.0545,0.0019299999999999999,2.1099999999999997e-06,0.0009360000000000001
1902,0.0574,0.0019299999999999999,2.2300000000000002e-06,0.000986
1903,0.0606,0.0019399999999999999,2.35e-06,0.0010400000000000001
1904,0.0639,0.0019399999999999999,2.48e-06,0.0011
1905,0.0674,0.00195,2.62e-06,0.00116
1906,0.0711,0.00195,2.76e-06,0.00122
1907,0.07479999999999999,0.00196,2.8999999999999998e-06,0.00128
1908,0.0785,0.00196,3.05e-06,0.00135
1909,0.0823,0.00197,3.19e-06,0.00141
1910,0.086,0.00198,3.34e-06,0.00148
1911,0.09,0.00198,3.49e-06,0.00155
1912,0.0945,0.00199,3.67e-06,0.0016200000000000001
1913,0.0993,0.00199,3.85e-06,0.0017
1914,0.104,0.002,4.04e-06,0.0017900000000000001
1915,0.109,0.0020099999999999996,4.23e-06,0.0018700000000000001
1916,0.114,0.0020099999999999996,4.41e-06,0.00195
1917,0.118,0.00202,4.57e-06,0.00202
1918,0.122,0.0020299999999999997,4.71e-06,0.00209
1919,0.124,0.0020499999999999997,4.83e-06,0.00214
1920,0.126,0.00206,4.9e-06,0.00217
1921,0.128,0.0021000000000000003,4.95e-06,0.00219
1922,0.129,0.00218,4.99e-06,0.00221
1923,0.129,0.0023,5.02e-06,0.00222
1924,0.13,0.0024500000000000004,5.05e-06,0.0022299999999999998
1925,0.131,0.00264,5.07e-06,0.0022400000000000002
1926,0.131,0.0028399999999999996,5.0899999999999995e-06,0.00225
1927,0.132,0.00307,5.12e-06,0.00226
1928,0.133,0.00332,5.15e-06,0.00228
1929,0.134,0.0035800000000000003,5.199999999999999e-06,0.0023
1930,0.136,0.0038399999999999997,5.26e-06,0.00233
1931,0.147,0.00376,5.69e-06,0.00252
1932,0.174,0.011,6.75e-06,0.00299
1933,0.215,0.0147,8.33e-06,0.00369
1934,0.265,0.0318,1.03e-05,0.00455
1935,0.322,0.0511,1.25e-05,0.00552
1936,0.381,0.0583,1.48e-05,0.006549999999999999
1937,0.441,0.062,1.7100000000000002e-05,0.00757
1938,0.497,0.062,1.93e-05,0.00853
1939,0.546,0.0584,2.12e-05,0.009380000000000001
1940,0.585,0.0221,2.2700000000000003e-05,0.01
1941,0.614,0.0221,2.3800000000000003e-05,0.0106
1942,0.639,0.349,2.48e-05,0.011
1943,0.661,0.0368,2.5600000000000002e-05,0.011300000000000001
1944,0.68,0.0659,2.64e-05,0.011699999999999999
1945,0.7,0.0733,2.7099999999999998e-05,0.012
1946,0.72,0.0734,2.79e-05,0.0124
1947,0.742,0.0844,2.88e-05,0.0127
1948,0.769,0.103,2.98e-05,0.0132
1949,0.801,0.117,3.11e-05,0.013800000000000002
1950,1.39,0.132,5.38e-05,0.0238
1951,1.31,0.15,5.0900000000000004e-05,0.0225
1952,1.03,0.143,4.01e-05,0.0178
1953,1.1,0.151,4.27e-05,0.0189
1954,1.14,0.169,4.4200000000000004e-05,0.019600000000000003
1955,1.4,0.228,5.4199999999999996e-05,0.024
1956,1.65,0.243,6.39e-05,0.028300000000000002
1957,1.79,0.279,6.94e-05,0.030699999999999998
1958,1.73,0.254,6.71e-05,0.0297
1959,2.08,0.371,8.08e-05,0.0358
1960,2.15,0.426,8.350000000000001e-05,0.037
1961,2.25,0.437,8.72e-05,0.0386
1962,2.43,0.431,9.42e-05,0.0417
1963,2.58,0.449,0.0001,0.0443
1964,2.83,0.443,0.00011,0.0485
1965,2.83,0.487,0.00011,0.0487
1966,3.08,0.549,0.00011999999999999999,0.053
1967,3.07,0.51,0.00011899999999999999,0.0526
1968,3.25,0.457,0.000126,0.0557
1969,3.73,0.628,0.000145,0.064
1970,3.29,0.671,0.00013900000000000002,0.0337
1971,4.59,0.723,0.00013900000000000002,0.0514
1972,4.89,0.779,0.000147,0.0587
1973,6.34,0.738,0.000154,0.0685
1974,6.36,0.741,0.000161,0.0565
1975,5.61,0.673,0.00016700000000000002,0.0533
1976,5.28,0.662,0.00017199999999999998,0.0715
1977,4.9,0.505,0.000176,0.06720000000000001
1978,5.02,0.487,0.000179,0.064
1979,5.1,0.703,0.000183,0.054700000000000006
1980,5.44,0.467,0.000186,0.051
1981,5.16,0.7,0.00019,0.0596
1982,5.27,0.469,0.000194,0.0492
1983,6.57,0.387,0.00019800000000000002,0.033100000000000004
1984,6.43,0.301,0.000202,0.032299999999999995
1985,7.56,0.224,0.000206,0.030699999999999998
1986,7.31,0.187,0.00020899999999999998,0.027899999999999998
1987,7.52,0.17,0.000211,0.024300000000000002
1988,7.21,0.153,0.000213,0.0206
1989,7.6,0.136,0.000215,0.017
1990,7.77,0.118,0.00021799999999999999,0.0143
1991,8.03,0.102,0.000223,0.0128
1992,9.61,0.135,0.000229,0.013900000000000001
1993,10.2,0.203,0.000237,0.0256
1994,11.0,0.167,0.000244,0.0202
1995,11.8,0.487,0.000249,0.0814
1996,12.0,0.795,0.000253,0.048
1997,14.3,0.859,0.000256,0.0551
1998,15.0,1.35,0.000259,0.0506
1999,15.1,1.36,0.000263,0.0475
2000,13.8,1.65,0.00028399999999999996,0.047
2001,14.7,1.71,0.00026700000000000004,0.0479
2002,14.6,1.71,0.00025,0.0435
2003,16.2,2.32,0.00023400000000000002,0.038799999999999994
2004,14.6,2.64,0.000217,0.0386
2005,13.9,2.77,0.0002,0.0362
2006,12.8,2.04,0.000184,0.035
2007,11.5,2.29,0.00016700000000000002,0.0339
2008,15.1,2.34,0.00015,0.033100000000000004
2009,18.4,2.57,0.000134,0.032600000000000004
2010,17.4,2.6,0.00011700000000000001,0.0322
2011,17.7,2.59,0.000101,0.032600000000000004
2012,20.0,2.41,0.000101,0.040100000000000004
2013,19.7,2.55,4.79e-06,0.0255
2014,21.3,2.42,5.1e-06,0.0255
2015,14.4,2.44,5.33e-06,0.017
2016,14.2,2.37,5.33e-06,0.015
2017,14.5,2.37,5.33e-06,0.0124
2018,14.1,2.37,5.33e-06,0.0104