year,IPC1,IPC2,IPC4,IPCMAG
1850,0.000357,0.00016,3.54e-08,1.2000000000000002e-07
1851,0.000376,0.00016900000000000002,3.7299999999999997e-08,1.26e-07
1852,0.00039600000000000003,0.000178,3.93e-08,1.33e-07
1853,0.00041799999999999997,0.000187,4.1399999999999994e-08,1.41e-07
1854,0.000441,0.00019800000000000002,4.37e-08,1.48e-07
1855,0.000465,0.00020899999999999998,4.61e-08,1.56e-07
1856,0.000491,0.00022,4.8600000000000005e-08,1.65e-07
1857,0.000517,0.000232,5.1199999999999995e-08,1.74e-07
1858,0.000544,0.000244,5.39e-08,1.83e-07
1859,0.0005729999999999999,0.000257,5.68e-08,1.93e-07
1860,0.000602,0.00027,5.96e-08,2.02e-07
1861,0.000632,0.000283,6.26e-08,2.13e-07
1862,0.000664,0.000298,6.58e-08,2.23e-07
1863,0.0006969999999999999,0.000313,6.91e-08,2.34e-07
1864,0.000732,0.000328,7.25e-08,2.46e-07
1865,0.000768,0.00034399999999999996,7.610000000000001e-08,2.58e-07
1866,0.0008060000000000001,0.000361,7.990000000000001e-08,2.71e-07
1867,0.000846,0.000379,8.380000000000001e-08,2.84e-07
1868,0.000887,0.000398,8.79e-08,2.98e-07
1869,0.00093,0.000417,9.21e-08,3.13e-07
1870,0.0009739999999999999,0.000437,9.65e-08,3.28e-07
1871,0.00102,0.000458,1.01e-07,3.44e-07
1872,0.00107,0.000481,1.06e-07,3.6000000000000005e-07
1873,0.00113,0.000505,1.12e-07,3.78e-07
1874,0.0011799999999999998,0.00053,1.17e-07,3.97e-07
1875,0.00124,0.0005560000000000001,1.23e-07,4.17e-07
1876,0.0013,0.000583,1.29e-07,4.37e-07
1877,0.00136,0.000611,1.35e-07,4.5899999999999997e-07
1878,0.0014299999999999998,0.00064,1.42e-07,4.800000000000001e-07
1879,0.00149,0.00067,1.48e-07,5.019999999999999e-07
1880,0.00156,0.0007,1.55e-07,5.25e-07
1881,0.00163,0.00073,1.61e-07,5.48e-07
1882,0.0017,0.000762,1.68e-07,5.71e-07
1883,0.00177,0.000794,1.76e-07,5.96e-07
1884,0.00185,0.000828,1.83e-07,6.210000000000001e-07
1885,0.0019199999999999998,0.000862,1.91e-07,6.47e-07
1886,0.002,0.000898,1.9900000000000002e-07,6.74e-07
1887,0.00209,0.0009350000000000001,2.07e-07,7.02e-07
1888,0.00217,0.0009739999999999999,2.15e-07,7.3e-07
1889,0.00226,0.00101,2.24e-07,7.61e-07
1890,0.0025299999999999997,0.000998,2.5099999999999996e-07,8.51e-07
1891,0.00263,0.000998,2.61e-07,8.84e-07
1892,0.0027400000000000002,0.000998,2.72e-07,9.219999999999999e-07
1893,0.0028599999999999997,0.000998,2.84e-07,9.62e-07
1894,0.00299,0.000998,2.97e-07,1.01e-06
1895,0.00313,0.000998,3.1e-07,1.05e-06
1896,0.00328,0.000998,3.2499999999999996e-07,1.1e-06
1897,0.00344,0.000998,3.41e-07,1.16e-06
1898,0.0036,0.000998,3.57e-07,1.2099999999999998e-06
1899,0.00377,0.000998,3.74e-07,1.2700000000000001e-06
1900,0.00395,0.000998,3.91e-07,1.33e-06
1901,0.00414,0.000998,4.1e-07,1.39e-06
1902,0.00435,0.000999,4.3100000000000003e-07,1.46e-06
1903,0.00458,0.000999,4.5399999999999996e-07,1.5399999999999999e-06
1904,0.0048200000000000005,0.001,4.78e-07,1.62e-06
1905,0.00507,0.001,5.03e-07,1.71e-06
1906,0.00533,0.001,5.280000000000001e-07,1.79e-06
1907,0.0055899999999999995,0.001,5.54e-07,1.88e-06
1908,0.005849999999999999,0.001,5.8e-07,1.9699999999999998e-06
1909,0.0060999999999999995,0.001,6.049999999999999e-07,2.0500000000000003e-06
1910,0.00634,0.001,6.29e-07,2.13e-06
1911,0.00658,0.001,6.520000000000001e-07,2.21e-06
1912,0.0068,0.001,6.74e-07,2.29e-06
1913,0.007030000000000001,0.001,6.96e-07,2.3600000000000003e-06
1914,0.00725,0.001,7.179999999999999e-07,2.44e-06
1915,0.00747,0.001,7.4e-07,2.51e-06
1916,0.0077,0.001,7.63e-07,2.5899999999999998e-06
1917,0.00793,0.001,7.86e-07,2.6700000000000003e-06
1918,0.00817,0.001,8.1e-07,2.75e-06
1919,0.00842,0.001,8.34e-07,2.83e-06
1920,0.00869,0.001,8.61e-07,2.92e-06
1921,0.008960000000000001,0.00103,8.88e-07,3.01e-06
1922,0.00925,0.0011200000000000001,9.16e-07,3.11e-06
1923,0.00954,0.00126,9.45e-07,3.21e-06
1924,0.00984,0.00145,9.75e-07,3.31e-06
1925,0.010199999999999999,0.00166,1.01e-06,3.42e-06
1926,0.0105,0.00191,1.04e-06,3.53e-06
1927,0.0108,0.00217,1.07e-06,3.64e-06
1928,0.0112,0.0024500000000000004,1.1100000000000002e-06,3.7499999999999997e-06
1929,0.0115,0.00273,1.1399999999999999e-06,3.87e-06
1930,0.0119,0.0030099999999999997,1.1800000000000001e-06,4e-06
1931,0.0123,0.0033,1.22e-06,4.12e-06
1932,0.0127,0.00361,1.25e-06,4.25e-06
1933,0.013,0.00396,1.29e-06,4.3899999999999995e-06
1934,0.0135,0.00433,1.33e-06,4.53e-06
1935,0.013900000000000001,0.00474,1.38e-06,4.669999999999999e-06
1936,0.0143,0.00518,1.42e-06,4.82e-06
1937,0.0148,0.00566,1.47e-06,4.97e-06
1938,0.015300000000000001,0.00617,1.5100000000000002e-06,5.14e-06
1939,0.0158,0.006719999999999999,1.5599999999999999e-06,5.31e-06
1940,0.016300000000000002,0.00731,1.62e-06,5.49e-06
1941,0.0169,0.007980000000000001,1.67e-06,5.67e-06
1942,0.0174,0.00874,1.72e-06,5.85e-06
1943,0.018,0.0096,1.78e-06,6.040000000000001e-06
1944,0.0185,0.0106,1.84e-06,6.2300000000000005e-06
1945,0.0192,0.0116,1.9e-06,6.44e-06
1946,0.0198,0.0127,1.9699999999999998e-06,6.67e-06
1947,0.0206,0.013900000000000001,2.04e-06,6.9300000000000006e-06
1948,0.0214,0.015099999999999999,2.12e-06,7.2100000000000004e-06
1949,0.021,0.016399999999999998,2.08e-06,7.05e-06
1950,0.062299999999999994,0.0174,6.18e-06,2.1000000000000002e-05
1951,0.047700000000000006,0.0188,4.7200000000000005e-06,1.6e-05
1952,0.099,0.023899999999999998,9.81e-06,3.33e-05
1953,0.121,0.0219,1.2e-05,4.07e-05
1954,0.18,0.0273,1.78e-05,6.0400000000000004e-05
1955,0.183,0.032799999999999996,1.8200000000000002e-05,6.16e-05
1956,0.191,0.0348,1.89e-05,6.41e-05
1957,0.205,0.037,2.03e-05,6.900000000000001e-05
1958,0.238,0.0356,2.36e-05,8.010000000000001e-05
1959,0.297,0.0415,2.94e-05,9.99e-05
1960,0.297,0.044,2.94e-05,9.99e-05
1961,0.356,0.0466,3.52e-05,0.00011999999999999999
1962,0.385,0.0494,3.8100000000000005e-05,0.000129
1963,0.403,0.052399999999999995,4e-05,0.000136
1964,0.422,0.0592,4.18e-05,0.00014199999999999998
1965,0.535,0.06620000000000001,5.3e-05,0.00017999999999999998
1966,0.499,0.0699,4.94e-05,0.00016800000000000002
1967,0.48,0.0665,4.7600000000000005e-05,0.000162
1968,0.579,0.07440000000000001,5.74e-05,0.000195
1969,0.502,0.0863,4.98e-05,0.00016900000000000002
1970,0.7,0.114,6.419999999999999e-05,0.000532
1971,0.605,0.101,6.419999999999999e-05,0.000255
1972,0.678,0.11,6.610000000000001e-05,0.000319
1973,0.832,0.113,6.86e-05,0.000213
1974,0.902,0.126,7.12e-05,0.000148
1975,0.77,0.145,7.4e-05,6.7e-05
1976,0.957,0.157,7.69e-05,0.00010899999999999999
1977,1.06,0.183,8e-05,6.69e-05
1978,1.38,0.171,8.319999999999999e-05,0.000185
1979,1.25,0.167,8.659999999999999e-05,0.00027100000000000003
1980,1.4,0.187,9.02e-05,0.00035299999999999996
1981,1.31,0.172,9.4e-05,0.000601
1982,1.31,0.155,9.800000000000001e-05,0.000533
1983,1.34,0.173,0.000103,0.000462
1984,1.44,0.156,0.000107,0.00035099999999999997
1985,1.53,0.129,0.000112,0.000862
1986,1.58,0.192,0.000118,0.0011799999999999998
1987,1.76,0.231,0.000123,0.00057
1988,2.0,0.265,0.000128,0.000589
1989,2.08,0.266,0.000134,0.00088
1990,2.0,0.268,0.00014000000000000001,0.00117
1991,1.97,0.266,0.000145,0.00117
1992,2.37,0.356,0.00015099999999999998,0.00152
1993,2.62,0.349,0.000157,0.0030499999999999998
1994,3.1,0.41,0.000163,0.0030600000000000002
1995,3.65,0.44,0.00016900000000000002,0.0031
1996,3.45,0.426,0.000175,0.00438
1997,3.86,0.428,0.00018099999999999998,0.0048200000000000005
1998,4.14,0.402,0.000187,0.0066
1999,4.14,0.397,0.000193,0.00634
2000,3.37,0.409,0.0002,0.006059999999999999
2001,3.5,0.371,0.000206,0.00754
2002,3.67,0.364,0.000212,0.0121
2003,3.81,0.424,0.000217,0.012199999999999999
2004,3.85,0.396,0.000222,0.0123
2005,3.56,0.416,0.00023400000000000002,0.0148
2006,3.69,0.426,0.000202,0.0156
2007,3.84,0.413,0.00017,0.00545
2008,4.05,0.433,0.00013900000000000002,0.00611
2009,4.26,0.476,0.000107,0.00704
2010,4.77,0.453,7.489999999999999e-05,0.0103
2011,5.0,0.4,4.32e-05,0.0038599999999999997
2012,4.88,0.49,1.1400000000000001e-05,0.0008810000000000001
2013,4.95,0.421,1.1599999999999999e-05,0.0066500000000000005
2014,5.03,0.464,1.18e-05,0.00643
2015,5.26,0.55,1.2e-05,0.0062
2016,5.42,0.55,1.2e-05,0.00597
2017,5.68,0.549,1.2e-05,0.00574
2018,5.78,0.55,1.2e-05,0.00551