year,IPC1,IPC2,IPC4,IPCMAG
1850,0.00513,0.00034,3.49e-05,1.35e-05
1851,0.00524,0.000348,3.57e-05,1.38e-05
1852,0.00564,0.000374,3.84e-05,1.48e-05
1853,0.00662,0.00044,4.51e-05,1.74e-05
1854,0.00764,0.000507,5.2e-05,2.01e-05
1855,0.00864,0.000574,5.89e-05,2.2700000000000003e-05
1856,0.00905,0.000601,6.17e-05,2.3800000000000003e-05
1857,0.00922,0.000612,6.28e-05,2.42e-05
1858,0.00904,0.0006,6.16e-05,2.3800000000000003e-05
1859,0.00915,0.000607,6.23e-05,2.4e-05
1860,0.009970000000000001,0.000661,6.79e-05,2.62e-05
1861,0.0108,0.0007149999999999999,7.35e-05,2.83e-05
1862,0.0114,0.000755,7.75e-05,2.99e-05
1863,0.0115,0.000766,7.87e-05,3.03e-05
1864,0.012199999999999999,0.000812,8.340000000000001e-05,3.22e-05
1865,0.0129,0.000855,8.78e-05,3.39e-05
1866,0.014,0.000929,9.54e-05,3.68e-05
1867,0.014199999999999999,0.000941,9.669999999999999e-05,3.73e-05
1868,0.0145,0.000963,9.89e-05,3.8100000000000005e-05
1869,0.0149,0.000988,0.000101,3.91e-05
1870,0.0132,0.000877,8.999999999999999e-05,3.47e-05
1871,0.013099999999999999,0.0008719999999999999,8.95e-05,3.4500000000000005e-05
1872,0.0159,0.00106,0.00010899999999999999,4.18e-05
1873,0.0172,0.00114,0.00011700000000000001,4.5199999999999994e-05
1874,0.016399999999999998,0.00109,0.000112,4.2999999999999995e-05
1875,0.0171,0.00113,0.000116,4.48e-05
1876,0.0171,0.00113,0.000116,4.49e-05
1877,0.0167,0.00111,0.000114,4.39e-05
1878,0.017,0.00113,0.000116,4.48e-05
1879,0.0176,0.00117,0.00011999999999999999,4.6399999999999996e-05
1880,0.019899999999999998,0.00132,0.000136,5.23e-05
1881,0.020399999999999998,0.00135,0.00013900000000000002,5.36e-05
1882,0.0215,0.0014299999999999998,0.000147,5.6500000000000005e-05
1883,0.022600000000000002,0.0015,0.000154,5.93e-05
1884,0.0217,0.0014399999999999999,0.000148,5.69e-05
1885,0.0208,0.00138,0.00014199999999999998,5.47e-05
1886,0.0207,0.0013700000000000001,0.00014099999999999998,5.43e-05
1887,0.0218,0.0014399999999999999,0.000148,5.72e-05
1888,0.022600000000000002,0.0015,0.000154,5.9499999999999996e-05
1889,0.0232,0.0015400000000000001,0.000158,6.1e-05
1890,0.0256,0.00156,0.000174,6.72e-05
1891,0.0256,0.00157,0.000175,6.73e-05
1892,0.0256,0.00157,0.000175,6.74e-05
1893,0.0252,0.00157,0.00017199999999999998,6.62e-05
1894,0.026600000000000002,0.00158,0.00018099999999999998,7.000000000000001e-05
1895,0.0269,0.00158,0.000183,7.06e-05
1896,0.027800000000000002,0.00159,0.000189,7.3e-05
1897,0.0291,0.0016,0.00019800000000000002,7.64e-05
1898,0.030100000000000002,0.0016,0.000205,7.9e-05
1899,0.0314,0.00161,0.000214,8.26e-05
1900,0.0338,0.0016200000000000001,0.00023,8.88e-05
1901,0.0327,0.00163,0.000223,8.58e-05
1902,0.0308,0.00163,0.00020999999999999998,8.08e-05
1903,0.0338,0.00164,0.00023,8.88e-05
1904,0.0329,0.00165,0.000224,8.649999999999999e-05
1905,0.033299999999999996,0.00166,0.00022700000000000002,8.75e-05
1906,0.0357,0.0016799999999999999,0.000243,9.379999999999999e-05
1907,0.0381,0.0016899999999999999,0.000259,0.0001
1908,0.0384,0.0017,0.000261,0.000101
1909,0.039299999999999995,0.00172,0.00026700000000000004,0.000103
1910,0.0394,0.00173,0.000268,0.000103
1911,0.041,0.00174,0.000279,0.000108
1912,0.0415,0.00176,0.00028199999999999997,0.00010899999999999999
1913,0.044700000000000004,0.0017800000000000001,0.000305,0.000118
1914,0.031,0.0018,0.000211,8.13e-05
1915,0.027,0.00182,0.000184,7.09e-05
1916,0.0287,0.00184,0.000195,7.53e-05
1917,0.0318,0.00186,0.000217,8.350000000000001e-05
1918,0.028399999999999998,0.00189,0.000193,7.45e-05
1919,0.0304,0.0019199999999999998,0.000207,7.98e-05
1920,0.039700000000000006,0.00196,0.00027,0.000104
1921,0.0361,0.00202,0.000246,9.470000000000001e-05
1922,0.0427,0.0021000000000000003,0.00029099999999999997,0.000112
1923,0.0482,0.00222,0.000328,0.000126
1924,0.054,0.00235,0.000368,0.00014199999999999998
1925,0.0559,0.0025,0.000381,0.000147
1926,0.0559,0.00265,0.000381,0.000147
1927,0.0557,0.00281,0.000379,0.000146
1928,0.054799999999999995,0.00296,0.000373,0.00014399999999999998
1929,0.0605,0.00311,0.000412,0.00015900000000000002
1930,0.0615,0.0032400000000000003,0.000419,0.000162
1931,0.056299999999999996,0.00337,0.000383,0.000148
1932,0.0495,0.0035,0.000337,0.00013000000000000002
1933,0.0516,0.00362,0.00035099999999999997,0.000135
1934,0.0521,0.00375,0.000354,0.00013700000000000002
1935,0.0506,0.00387,0.00034399999999999996,0.000133
1936,0.0513,0.004,0.00034899999999999997,0.000134
1937,0.0565,0.00412,0.000384,0.000148
1938,0.052899999999999996,0.00424,0.000359,0.00013900000000000002
1939,0.0511,0.00435,0.000347,0.000134
1940,0.0362,0.0044599999999999996,0.000245,9.460000000000001e-05
1941,0.031100000000000003,0.00457,0.000211,8.12e-05
1942,0.032,0.0046500000000000005,0.000216,8.33e-05
1943,0.032600000000000004,0.004730000000000001,0.00022,8.5e-05
1944,0.021,0.00481,0.00014099999999999998,5.4399999999999994e-05
1945,0.0281,0.004889999999999999,0.000189,7.31e-05
1946,0.0433,0.00497,0.000292,0.00011300000000000001
1947,0.0479,0.00507,0.000324,0.000125
1948,0.0511,0.00518,0.000345,0.000133
1949,0.0595,0.00531,0.000402,0.000155
1950,0.0525,0.00546,0.000354,0.000136
1951,0.0593,0.005690000000000001,0.0004,0.000154
1952,0.0589,0.00604,0.000397,0.000153
1953,0.0557,0.0064800000000000005,0.000374,0.00014399999999999998
1954,0.059,0.007,0.000395,0.000152
1955,0.062299999999999994,0.0075899999999999995,0.000416,0.000161
1956,0.0701,0.008230000000000001,0.00046800000000000005,0.00018099999999999998
1957,0.0725,0.00891,0.000483,0.000186
1958,0.0696,0.009609999999999999,0.000462,0.000178
1959,0.0685,0.0103,0.00045400000000000003,0.000175
1960,0.071,0.011,0.00047,0.00018099999999999998
1961,0.0735,0.011699999999999999,0.00048699999999999997,0.000188
1962,0.07790000000000001,0.0126,0.000517,0.000199
1963,0.087,0.0135,0.000578,0.000223
1964,0.0895,0.0144,0.0005949999999999999,0.00023
1965,0.0912,0.0154,0.000606,0.00023400000000000002
1966,0.08990000000000001,0.016399999999999998,0.000597,0.00023
1967,0.09620000000000001,0.0173,0.00064,0.000247
1968,0.0994,0.0182,0.000662,0.000255
1969,0.107,0.019,0.0007109999999999999,0.00027400000000000005
1970,0.114,0.0174,0.0006889999999999999,0.00029299999999999997
1971,0.118,0.0171,0.0006810000000000001,0.000303
1972,0.123,0.0181,0.0006760000000000001,0.000319
1973,0.132,0.018699999999999998,0.0006760000000000001,0.00033400000000000004
1974,0.128,0.019,0.000687,0.00034300000000000004
1975,0.114,0.016800000000000002,0.000683,0.00035999999999999997
1976,0.129,0.018,0.000684,0.000379
1977,0.122,0.0178,0.000678,0.00039
1978,0.128,0.0176,0.000678,0.00040899999999999997
1979,0.135,0.018,0.000683,0.000442
1980,0.13,0.0172,0.000684,0.000451
1981,0.118,0.0165,0.000687,0.00048699999999999997
1982,0.113,0.015099999999999999,0.00069,0.000506
1983,0.11,0.0148,0.0006979999999999999,0.000524
1984,0.106,0.0154,0.000699,0.000524
1985,0.105,0.0148,0.0006979999999999999,0.0005629999999999999
1986,0.0999,0.0144,0.000694,0.000606
1987,0.09720000000000001,0.015,0.0006889999999999999,0.000605
1988,0.09609999999999999,0.0152,0.0006760000000000001,0.000614
1989,0.101,0.015,0.000674,0.000625
1990,0.0995,0.015,0.000721,0.000631
1991,0.1,0.0147,0.000743,0.000633
1992,0.106,0.0146,0.0007930000000000001,0.000629
1993,0.105,0.013900000000000001,0.0007920000000000001,0.000633
1994,0.105,0.0141,0.0008810000000000001,0.000621
1995,0.103,0.014,0.000886,0.000608
1996,0.106,0.014,0.000891,0.00063
1997,0.104,0.0144,0.000837,0.000624
1998,0.103,0.0147,0.000879,0.0006360000000000001
1999,0.103,0.0145,0.0008990000000000001,0.0006490000000000001
2000,0.101,0.0148,0.0009459999999999999,0.000629
2001,0.101,0.0143,0.000988,0.000643
2002,0.101,0.014199999999999999,0.0010500000000000002,0.000637
2003,0.0978,0.0144,0.0010500000000000002,0.0006450000000000001
2004,0.0925,0.0146,0.00106,0.000646
2005,0.0911,0.0146,0.00108,0.000662
2006,0.0845,0.0145,0.00108,0.000655
2007,0.0837,0.0149,0.00109,0.0006680000000000001
2008,0.0834,0.0135,0.00111,0.0006720000000000001
2009,0.0799,0.015099999999999999,0.000995,0.000665
2010,0.07840000000000001,0.016300000000000002,0.0011,0.0007099999999999999
2011,0.07579999999999999,0.016300000000000002,0.0011799999999999998,0.000657
2012,0.07909999999999999,0.0148,0.00127,0.000696
2013,0.0798,0.0141,0.00113,0.000708
2014,0.07479999999999999,0.0124,0.00117,0.000752
2015,0.0755,0.0127,0.00121,0.000967
2016,0.07579999999999999,0.0128,0.00123,0.00102
2017,0.07429999999999999,0.0136,0.00126,0.00107
2018,0.076,0.0136,0.00128,0.0011200000000000001