year,IPC1,IPC2,IPC4,IPCMAG
1850,0.00539,0.0,0.000608,0.00148
1851,0.00545,2.55e-07,0.00061,0.0015300000000000001
1852,0.00552,5.07e-07,0.000612,0.00158
1853,0.00558,7.57e-07,0.000615,0.00163
1854,0.0056500000000000005,1e-06,0.000617,0.0016799999999999999
1855,0.005719999999999999,1.25e-06,0.00062,0.00173
1856,0.00578,1.49e-06,0.000623,0.00177
1857,0.005849999999999999,1.73e-06,0.000626,0.00182
1858,0.00592,1.9699999999999998e-06,0.000629,0.0018700000000000001
1859,0.0059900000000000005,2.2e-06,0.000632,0.00191
1860,0.006059999999999999,2.44e-06,0.000635,0.00196
1861,0.00613,2.6700000000000003e-06,0.000638,0.002
1862,0.0062,2.8999999999999998e-06,0.000642,0.0020499999999999997
1863,0.0062699999999999995,3.1199999999999998e-06,0.0006450000000000001,0.00209
1864,0.00635,3.35e-06,0.0006490000000000001,0.00214
1865,0.00642,3.5699999999999997e-06,0.000653,0.00218
1866,0.00649,3.79e-06,0.000657,0.00222
1867,0.00657,4.01e-06,0.000661,0.00227
1868,0.00664,4.23e-06,0.000666,0.00231
1869,0.006719999999999999,4.440000000000001e-06,0.00067,0.00235
1870,0.00679,4.6499999999999995e-06,0.000675,0.00239
1871,0.00687,4.86e-06,0.00068,0.0024300000000000003
1872,0.00694,5.07e-06,0.0006850000000000001,0.0024700000000000004
1873,0.007019999999999999,5.28e-06,0.00069,0.0025099999999999996
1874,0.0070999999999999995,5.48e-06,0.000696,0.0025499999999999997
1875,0.00718,5.68e-06,0.0007019999999999999,0.0026
1876,0.00726,5.88e-06,0.000708,0.00264
1877,0.00733,6.08e-06,0.000714,0.00267
1878,0.00741,6.28e-06,0.0007199999999999999,0.00271
1879,0.00749,6.47e-06,0.000726,0.00275
1880,0.00757,6.67e-06,0.000732,0.00279
1881,0.0076500000000000005,6.8599999999999995e-06,0.0007379999999999999,0.00283
1882,0.007730000000000001,7.05e-06,0.000744,0.00287
1883,0.007809999999999999,7.24e-06,0.00075,0.0029100000000000003
1884,0.0079,7.42e-06,0.000756,0.0029500000000000004
1885,0.007980000000000001,7.61e-06,0.000762,0.00299
1886,0.008060000000000001,7.79e-06,0.000768,0.00302
1887,0.008140000000000001,7.98e-06,0.0007740000000000001,0.0030600000000000002
1888,0.00822,8.16e-06,0.00078,0.0031
1889,0.00831,8.34e-06,0.000787,0.00314
1890,0.008320000000000001,1.3e-05,0.000803,0.00322
1891,0.009,1.4e-05,0.0008100000000000001,0.00328
1892,0.011,1.5100000000000001e-05,0.0008179999999999999,0.00333
1893,0.014199999999999999,1.65e-05,0.0008269999999999999,0.0033900000000000002
1894,0.018600000000000002,1.7999999999999997e-05,0.0008359999999999999,0.0034500000000000004
1895,0.024,1.96e-05,0.0008449999999999999,0.0035099999999999997
1896,0.0304,2.14e-05,0.000855,0.00357
1897,0.037700000000000004,2.33e-05,0.000865,0.00364
1898,0.0458,2.5399999999999997e-05,0.000875,0.0037
1899,0.054700000000000006,2.75e-05,0.000886,0.00377
1900,0.06420000000000001,2.97e-05,0.000897,0.0038399999999999997
1901,0.08070000000000001,3.22e-05,0.000909,0.00391
1902,0.109,3.54e-05,0.000921,0.0039700000000000004
1903,0.146,3.89e-05,0.000933,0.00404
1904,0.191,4.28e-05,0.0009469999999999999,0.0040999999999999995
1905,0.24,4.68e-05,0.0009599999999999999,0.00417
1906,0.292,5.07e-05,0.000975,0.00424
1907,0.343,5.4399999999999994e-05,0.000989,0.00433
1908,0.392,5.79e-05,0.001,0.00443
1909,0.437,6.08e-05,0.00102,0.00454
1910,0.475,6.31e-05,0.00103,0.00467
1911,0.508,6.48e-05,0.0010500000000000002,0.00488
1912,0.54,6.64e-05,0.00106,0.00521
1913,0.572,6.769999999999999e-05,0.00108,0.00563
1914,0.603,6.890000000000001e-05,0.00109,0.00613
1915,0.633,7.01e-05,0.0011,0.006690000000000001
1916,0.661,7.12e-05,0.0011200000000000001,0.00728
1917,0.688,7.230000000000001e-05,0.00114,0.00788
1918,0.712,7.36e-05,0.00116,0.00847
1919,0.735,7.489999999999999e-05,0.0011799999999999998,0.00902
1920,0.754,7.65e-05,0.00121,0.009519999999999999
1921,0.771,7.82e-05,0.00124,0.01
1922,0.786,8e-05,0.0012900000000000001,0.0106
1923,0.799,8.19e-05,0.00135,0.0112
1924,0.81,8.39e-05,0.0014199999999999998,0.011800000000000001
1925,0.821,8.599999999999999e-05,0.00151,0.0123
1926,0.832,8.82e-05,0.00159,0.0129
1927,0.844,9.070000000000001e-05,0.0016899999999999999,0.013300000000000001
1928,0.858,9.329999999999999e-05,0.0017900000000000001,0.013699999999999999
1929,0.873,9.61e-05,0.00189,0.013900000000000001
1930,0.892,9.92e-05,0.00199,0.014
1931,0.914,0.000103,0.00209,0.014
1932,0.94,0.000107,0.00221,0.013800000000000002
1933,0.97,0.000112,0.00233,0.0136
1934,1.0,0.000118,0.0024500000000000004,0.013300000000000001
1935,1.04,0.000124,0.00259,0.013
1936,1.08,0.00013000000000000002,0.00273,0.0127
1937,1.12,0.000136,0.00289,0.0124
1938,1.17,0.00014099999999999998,0.0030499999999999998,0.012199999999999999
1939,1.21,0.000147,0.00322,0.012
1940,1.26,0.000152,0.0034,0.012
1941,1.32,0.000157,0.00359,0.0129
1942,1.38,0.000161,0.00381,0.0155
1943,1.44,0.000164,0.00405,0.0193
1944,1.52,0.00016800000000000002,0.0043,0.023899999999999998
1945,1.59,0.00017199999999999998,0.00457,0.0289
1946,1.67,0.000176,0.004849999999999999,0.034
1947,1.76,0.00017999999999999998,0.00514,0.0386
1948,1.84,0.000185,0.00543,0.0424
1949,1.93,0.00019,0.005730000000000001,0.045
1950,2.01,0.00019700000000000002,0.006030000000000001,0.045899999999999996
1951,2.09,0.000206,0.00633,0.045399999999999996
1952,2.17,0.000217,0.00663,0.0441
1953,2.25,0.000232,0.00694,0.0421
1954,2.32,0.000248,0.0072699999999999996,0.039799999999999995
1955,2.41,0.000266,0.0076,0.037200000000000004
1956,2.49,0.000285,0.007940000000000001,0.0346
1957,2.59,0.000305,0.00831,0.0322
1958,2.7,0.000325,0.00869,0.0303
1959,2.83,0.00034399999999999996,0.009089999999999999,0.029
1960,2.97,0.00036199999999999996,0.00951,0.0285
1961,3.18,0.000382,0.00999,0.0304
1962,3.47,0.00040500000000000003,0.0105,0.0313
1963,3.83,0.00043,0.0111,0.0322
1964,4.24,0.000455,0.011699999999999999,0.033299999999999996
1965,4.68,0.00047999999999999996,0.0124,0.0344
1966,5.14,0.000503,0.013,0.0341
1967,5.6,0.000523,0.013699999999999999,0.0344
1968,6.04,0.000539,0.0143,0.033
1969,6.44,0.000549,0.0149,0.032299999999999995
1970,5.82,0.0006450000000000001,0.0176,0.031
1971,3.87,0.0006450000000000001,0.0192,0.028300000000000002
1972,2.54,0.0006450000000000001,0.0205,0.0286
1973,2.23,0.0006450000000000001,0.022,0.032600000000000004
1974,1.04,0.0006450000000000001,0.0235,0.0335
1975,1.32,0.0006450000000000001,0.0249,0.0417
1976,1.78,0.0006450000000000001,0.0263,0.0443
1977,1.83,0.0006450000000000001,0.027800000000000002,0.0385
1978,1.83,0.0006450000000000001,0.0299,0.040100000000000004
1979,1.99,0.0006450000000000001,0.0318,0.05
1980,1.92,0.0006450000000000001,0.0335,0.0499
1981,1.02,0.0006450000000000001,0.0352,0.0426
1982,1.22,0.0006450000000000001,0.037399999999999996,0.0519
1983,0.874,0.0006450000000000001,0.040600000000000004,0.0522
1984,0.643,0.0012900000000000001,0.0451,0.0505
1985,0.483,0.00135,0.048100000000000004,0.0503
1986,1.42,0.00135,0.0485,0.046700000000000005
1987,0.983,0.00135,0.0496,0.0428
1988,1.13,0.00136,0.0502,0.0438
1989,1.03,0.00136,0.0504,0.0476
1990,1.59,0.00136,0.0517,0.05
1991,1.59,0.00136,0.052399999999999995,0.0489
1992,1.77,0.0013700000000000001,0.053399999999999996,0.0469
1993,1.95,0.00136,0.055299999999999995,0.0451
1994,2.01,0.0013700000000000001,0.0576,0.0441
1995,2.08,0.0013700000000000001,0.06,0.0451
1996,2.01,0.00138,0.061399999999999996,0.047299999999999995
1997,1.47,0.00138,0.062,0.0441
1998,1.21,0.00139,0.0628,0.047200000000000006
1999,1.01,0.00139,0.0637,0.0428
2000,0.971,0.0014,0.06420000000000001,0.0371
2001,0.877,0.0014,0.065,0.0391
2002,0.849,0.0014,0.0659,0.0405
2003,1.02,0.0014,0.0673,0.0438
2004,0.996,0.00152,0.0687,0.047799999999999995
2005,1.11,0.00164,0.0698,0.0506
2006,1.13,0.00177,0.0706,0.055600000000000004
2007,1.07,0.0015300000000000001,0.071,0.0584
2008,1.1,0.00164,0.0713,0.0585
2009,0.987,0.00164,0.073,0.0606
2010,1.06,0.00157,0.074,0.063
2011,0.552,0.0030600000000000002,0.0741,0.0633
2012,0.881,0.0034,0.0755,0.0633
2013,0.679,0.000116,0.0678,0.0639
2014,0.504,0.000116,0.0686,0.0635
2015,0.459,0.000116,0.0693,0.0631
2016,0.626,0.00116,0.0729,0.0648
2017,0.594,0.00111,0.0733,0.0655
2018,0.561,0.00107,0.0736,0.06609999999999999