year,IPC1,IPC2,IPC4,IPCMAG
1850,0.00038,7.63e-06,8.14e-09,8.44e-09
1851,0.0004,8.030000000000001e-06,8.57e-09,8.879999999999999e-09
1852,0.000422,8.46e-06,9.03e-09,9.36e-09
1853,0.00044500000000000003,8.930000000000001e-06,9.53e-09,9.88e-09
1854,0.00047,9.42e-06,1e-08,1.04e-08
1855,0.000495,9.93e-06,1.06e-08,1.1e-08
1856,0.000522,1.0500000000000001e-05,1.12e-08,1.1600000000000001e-08
1857,0.0005510000000000001,1.1e-05,1.18e-08,1.22e-08
1858,0.00058,1.1599999999999999e-05,1.24e-08,1.29e-08
1859,0.00061,1.22e-05,1.31e-08,1.35e-08
1860,0.000641,1.29e-05,1.3699999999999999e-08,1.42e-08
1861,0.0006730000000000001,1.35e-05,1.44e-08,1.49e-08
1862,0.000707,1.4200000000000001e-05,1.51e-08,1.5699999999999998e-08
1863,0.000742,1.49e-05,1.59e-08,1.6500000000000002e-08
1864,0.0007790000000000001,1.56e-05,1.67e-08,1.73e-08
1865,0.0008179999999999999,1.6400000000000002e-05,1.7499999999999998e-08,1.81e-08
1866,0.000858,1.72e-05,1.84e-08,1.9e-08
1867,0.0009,1.8100000000000003e-05,1.93e-08,2e-08
1868,0.000944,1.89e-05,2.02e-08,2.1e-08
1869,0.00099,1.9900000000000003e-05,2.12e-08,2.2e-08
1870,0.0010400000000000001,2.0799999999999997e-05,2.22e-08,2.3e-08
1871,0.00109,2.18e-05,2.33e-08,2.41e-08
1872,0.00114,2.29e-05,2.44e-08,2.5299999999999998e-08
1873,0.0012,2.4e-05,2.5599999999999998e-08,2.66e-08
1874,0.00126,2.52e-05,2.69e-08,2.7900000000000002e-08
1875,0.00132,2.65e-05,2.83e-08,2.93e-08
1876,0.00139,2.7799999999999998e-05,2.96e-08,3.0700000000000004e-08
1877,0.00145,2.91e-05,3.1099999999999994e-08,3.22e-08
1878,0.00152,3.05e-05,3.25e-08,3.37e-08
1879,0.00159,3.1899999999999996e-05,3.4e-08,3.53e-08
1880,0.00166,3.33e-05,3.56e-08,3.69e-08
1881,0.00173,3.48e-05,3.71e-08,3.85e-08
1882,0.00181,3.63e-05,3.8699999999999996e-08,4.02e-08
1883,0.00189,3.78e-05,4.04e-08,4.1900000000000005e-08
1884,0.00197,3.9399999999999995e-05,4.21e-08,4.36e-08
1885,0.0020499999999999997,4.1099999999999996e-05,4.38e-08,4.5399999999999996e-08
1886,0.00213,4.28e-05,4.57e-08,4.73e-08
1887,0.00222,4.46e-05,4.75e-08,4.93e-08
1888,0.00231,4.6399999999999996e-05,4.95e-08,5.13e-08
1889,0.0024100000000000002,4.83e-05,5.15e-08,5.3399999999999995e-08
1890,0.00263,4.7600000000000005e-05,5.63e-08,5.84e-08
1891,0.00273,4.7600000000000005e-05,5.84e-08,6.05e-08
1892,0.00283,4.7600000000000005e-05,6.06e-08,6.279999999999999e-08
1893,0.00294,4.7600000000000005e-05,6.3e-08,6.53e-08
1894,0.0030600000000000002,4.7600000000000005e-05,6.550000000000001e-08,6.789999999999999e-08
1895,0.00319,4.7600000000000005e-05,6.82e-08,7.069999999999999e-08
1896,0.00332,4.7600000000000005e-05,7.1e-08,7.36e-08
1897,0.0034500000000000004,4.7600000000000005e-05,7.389999999999999e-08,7.660000000000001e-08
1898,0.0036,4.7600000000000005e-05,7.69e-08,7.98e-08
1899,0.0037400000000000003,4.7600000000000005e-05,8.01e-08,8.3e-08
1900,0.0038900000000000002,4.7600000000000005e-05,8.330000000000001e-08,8.64e-08
1901,0.004059999999999999,4.7600000000000005e-05,8.69e-08,9.009999999999999e-08
1902,0.00426,4.7600000000000005e-05,9.11e-08,9.44e-08
1903,0.00447,4.7600000000000005e-05,9.560000000000001e-08,9.91e-08
1904,0.004690000000000001,4.7600000000000005e-05,1.0000000000000001e-07,1.0399999999999999e-07
1905,0.00491,4.7600000000000005e-05,1.05e-07,1.0900000000000001e-07
1906,0.00514,4.77e-05,1.1e-07,1.14e-07
1907,0.00535,4.77e-05,1.14e-07,1.1900000000000001e-07
1908,0.00554,4.77e-05,1.1900000000000001e-07,1.23e-07
1909,0.00571,4.78e-05,1.22e-07,1.2699999999999999e-07
1910,0.005849999999999999,4.78e-05,1.25e-07,1.3e-07
1911,0.00597,4.9000000000000005e-05,1.2799999999999998e-07,1.3200000000000002e-07
1912,0.00607,5.21e-05,1.3e-07,1.35e-07
1913,0.0061600000000000005,5.69e-05,1.3200000000000002e-07,1.37e-07
1914,0.00624,6.33e-05,1.33e-07,1.38e-07
1915,0.00631,7.08e-05,1.35e-07,1.3999999999999998e-07
1916,0.00639,7.92e-05,1.37e-07,1.42e-07
1917,0.00647,8.840000000000001e-05,1.38e-07,1.43e-07
1918,0.006549999999999999,9.800000000000001e-05,1.3999999999999998e-07,1.45e-07
1919,0.00663,0.000108,1.42e-07,1.47e-07
1920,0.006730000000000001,0.00011700000000000001,1.44e-07,1.49e-07
1921,0.00683,0.000128,1.46e-07,1.52e-07
1922,0.0069299999999999995,0.00013900000000000002,1.48e-07,1.54e-07
1923,0.007030000000000001,0.00015099999999999998,1.5e-07,1.56e-07
1924,0.00713,0.000165,1.53e-07,1.5799999999999999e-07
1925,0.00724,0.00017999999999999998,1.55e-07,1.61e-07
1926,0.00736,0.00019600000000000002,1.57e-07,1.6300000000000002e-07
1927,0.00749,0.000213,1.6e-07,1.66e-07
1928,0.00763,0.000231,1.6300000000000002e-07,1.69e-07
1929,0.00779,0.00025,1.67e-07,1.73e-07
1930,0.00797,0.00026900000000000003,1.71e-07,1.7699999999999998e-07
1931,0.00821,0.00029,1.76e-07,1.8200000000000002e-07
1932,0.00851,0.000312,1.8200000000000002e-07,1.89e-07
1933,0.00888,0.00033400000000000004,1.9e-07,1.97e-07
1934,0.009300000000000001,0.000359,1.9900000000000002e-07,2.06e-07
1935,0.00977,0.000386,2.09e-07,2.17e-07
1936,0.0103,0.000416,2.2e-07,2.28e-07
1937,0.0108,0.00045,2.3100000000000002e-07,2.39e-07
1938,0.011300000000000001,0.00048699999999999997,2.42e-07,2.5099999999999996e-07
1939,0.011800000000000001,0.0005290000000000001,2.5399999999999997e-07,2.63e-07
1940,0.0124,0.000575,2.65e-07,2.75e-07
1941,0.0129,0.000637,2.76e-07,2.86e-07
1942,0.0134,0.0007199999999999999,2.88e-07,2.98e-07
1943,0.014,0.000823,2.99e-07,3.1e-07
1944,0.0146,0.000941,3.11e-07,3.2299999999999997e-07
1945,0.0152,0.00107,3.24e-07,3.36e-07
1946,0.0158,0.00121,3.38e-07,3.5e-07
1947,0.0165,0.00136,3.52e-07,3.65e-07
1948,0.0172,0.00151,3.67e-07,3.81e-07
1949,0.0291,0.0016699999999999998,6.22e-07,6.45e-07
1950,0.027600000000000003,0.00182,5.91e-07,6.13e-07
1951,0.039799999999999995,0.00197,8.52e-07,8.83e-07
1952,0.048799999999999996,0.00212,1.04e-06,1.08e-06
1953,0.043,0.00228,9.210000000000001e-07,9.539999999999999e-07
1954,0.0469,0.00244,1e-06,1.04e-06
1955,0.044899999999999995,0.00261,9.62e-07,9.970000000000002e-07
1956,0.061,0.00279,1.31e-06,1.35e-06
1957,0.0655,0.00298,1.4e-06,1.4499999999999999e-06
1958,0.0751,0.00319,1.61e-06,1.67e-06
1959,0.0257,0.0034100000000000003,5.490000000000001e-07,5.699999999999999e-07
1960,0.136,0.00364,2.8999999999999998e-06,3.01e-06
1961,0.165,0.0038900000000000002,3.53e-06,3.66e-06
1962,0.088,0.00414,1.88e-06,1.95e-06
1963,0.0733,0.00442,1.57e-06,1.6299999999999999e-06
1964,0.191,0.00471,4.08e-06,4.23e-06
1965,0.216,0.005030000000000001,4.63e-06,4.8e-06
1966,0.381,0.00539,8.16e-06,8.46e-06
1967,1.01,0.00577,2.17e-05,2.2499999999999998e-05
1968,1.96,0.0062,4.2000000000000004e-05,4.35e-05
1969,1.43,0.00667,3.07e-05,3.18e-05
1970,2.08,0.007730000000000001,3.03e-05,4.48e-05
1971,2.85,0.00785,3.03e-05,5.4399999999999994e-05
1972,2.74,0.008,3.2800000000000004e-05,5.0900000000000004e-05
1973,5.31,0.007549999999999999,3.5499999999999996e-05,7.149999999999999e-05
1974,5.45,0.00958,3.83e-05,7.26e-05
1975,5.37,0.056100000000000004,4.13e-05,6.7e-05
1976,5.65,0.0663,4.44e-05,8.75e-05
1977,6.22,0.104,4.78e-05,2.23e-05
1978,7.55,0.0174,5.13e-05,2.3199999999999998e-05
1979,6.71,0.0516,5.5e-05,2.46e-05
1980,6.58,0.0628,5.89e-05,2.52e-05
1981,6.5,0.0813,6.3e-05,0.00020899999999999998
1982,6.46,0.0953,6.62e-05,5.33e-05
1983,5.46,0.0694,6.950000000000001e-05,0.000163
1984,5.89,0.108,7.290000000000001e-05,0.000135
1985,6.2,0.124,7.65e-05,0.000287
1986,4.86,0.111,8.03e-05,0.00029499999999999996
1987,3.95,0.0798,8.42e-05,0.000285
1988,4.27,0.07629999999999999,8.85e-05,0.000258
1989,5.71,0.0592,9.279999999999999e-05,0.000275
1990,4.44,0.0589,9.73e-05,0.000292
1991,4.48,0.0592,0.000102,0.000309
1992,4.87,0.0595,0.000107,0.00032700000000000003
1993,4.92,0.07690000000000001,0.000111,0.00034399999999999996
1994,4.33,0.0723,0.000116,0.000361
1995,4.54,0.0846,0.00011999999999999999,0.000378
1996,4.68,0.0968,0.000125,0.000395
1997,4.7,0.103,0.000129,0.000412
1998,4.88,0.103,0.000134,0.000429
1999,4.72,0.09459999999999999,0.00013900000000000002,0.000446
2000,4.59,0.11,0.000156,0.00046300000000000003
2001,4.68,0.117,0.000161,0.00047999999999999996
2002,4.44,0.122,0.00016700000000000002,0.000497
2003,4.51,0.122,0.00017299999999999998,0.000515
2004,4.56,0.122,0.000179,0.000532
2005,4.76,0.122,0.000186,0.000549
2006,4.04,0.121,0.000193,0.000566
2007,4.0,0.11,0.0002,0.000583
2008,4.06,0.109,0.000208,0.0006
2009,4.12,0.119,0.000216,0.000617
2010,4.7,0.108,0.000225,0.000634
2011,4.85,0.111,0.00023400000000000002,0.000651
2012,5.01,0.09770000000000001,0.000244,0.0006680000000000001
2013,5.2,0.0883,0.000254,0.0006850000000000001
2014,5.04,0.088,0.000264,0.000703
2015,5.16,0.0804,0.000273,0.0007199999999999999
2016,5.22,0.109,0.000283,0.000737
2017,4.88,0.109,0.000292,0.000754
2018,4.89,0.109,0.000303,0.000771