year,IPC1,IPC2,IPC4,IPCMAG
1850,0.000177,1.9e-07,2.66e-09,4.39e-08
1851,0.000215,2.3e-07,3.23e-09,5.32e-08
1852,0.000283,3.03e-07,4.24e-09,6.999999999999999e-08
1853,0.000368,3.93e-07,5.52e-09,9.100000000000001e-08
1854,0.000457,4.89e-07,6.860000000000001e-09,1.1299999999999999e-07
1855,0.0005380000000000001,5.76e-07,8.07e-09,1.33e-07
1856,0.000614,6.58e-07,9.22e-09,1.52e-07
1857,0.000691,7.4e-07,1.04e-08,1.71e-07
1858,0.000755,8.08e-07,1.13e-08,1.87e-07
1859,0.0008010000000000001,8.57e-07,1.2e-08,1.98e-07
1860,0.00115,1.2299999999999999e-06,1.73e-08,2.8499999999999997e-07
1861,0.0014399999999999999,1.55e-06,2.17e-08,3.57e-07
1862,0.00131,1.4e-06,1.96e-08,3.2299999999999997e-07
1863,0.0014299999999999998,1.53e-06,2.14e-08,3.53e-07
1864,0.00164,1.76e-06,2.4600000000000002e-08,4.0700000000000003e-07
1865,0.00161,1.72e-06,2.4199999999999998e-08,3.99e-07
1866,0.00458,4.9e-06,6.880000000000001e-08,1.13e-06
1867,0.00533,5.7099999999999995e-06,8.01e-08,1.32e-06
1868,0.004849999999999999,5.199999999999999e-06,7.279999999999999e-08,1.2e-06
1869,0.0062900000000000005,6.73e-06,9.44e-08,1.5599999999999999e-06
1870,0.0067599999999999995,7.24e-06,1.01e-07,1.67e-06
1871,0.00875,9.37e-06,1.3100000000000002e-07,2.17e-06
1872,0.00903,9.67e-06,1.36e-07,2.2399999999999997e-06
1873,0.00933,9.98e-06,1.3999999999999998e-07,2.31e-06
1874,0.0119,1.2699999999999999e-05,1.7799999999999998e-07,2.93e-06
1875,0.0147,1.57e-05,2.2e-07,3.63e-06
1876,0.019600000000000003,2.1000000000000002e-05,2.9500000000000003e-07,4.86e-06
1877,0.0225,2.4e-05,3.37e-07,5.56e-06
1878,0.0285,3.05e-05,4.28e-07,7.05e-06
1879,0.0315,3.37e-05,4.73e-07,7.8e-06
1880,0.0364,3.9e-05,5.469999999999999e-07,9.02e-06
1881,0.0431,4.62e-05,6.48e-07,1.07e-05
1882,0.0461,4.93e-05,6.92e-07,1.1400000000000001e-05
1883,0.0517,5.54e-05,7.76e-07,1.2800000000000001e-05
1884,0.0631,6.75e-05,9.47e-07,1.56e-05
1885,0.075,8.03e-05,1.13e-06,1.8599999999999998e-05
1886,0.0775,8.3e-05,1.16e-06,1.92e-05
1887,0.0916,9.800000000000001e-05,1.37e-06,2.2700000000000003e-05
1888,0.0978,0.00010499999999999999,1.47e-06,2.42e-05
1889,0.101,0.000108,1.5100000000000002e-06,2.49e-05
1890,0.119,0.000128,1.79e-06,2.96e-05
1891,0.141,0.00015099999999999998,2.12e-06,3.49e-05
1892,0.148,0.000158,2.2200000000000003e-06,3.65e-05
1893,0.174,0.000186,2.61e-06,4.31e-05
1894,0.165,0.000177,2.48e-06,4.09e-05
1895,0.213,0.000228,3.2000000000000003e-06,5.28e-05
1896,0.213,0.000228,3.2000000000000003e-06,5.28e-05
1897,0.244,0.000261,3.66e-06,6.0400000000000004e-05
1898,0.275,0.000294,4.13e-06,6.809999999999999e-05
1899,0.302,0.000323,4.53e-06,7.48e-05
1900,0.349,0.000374,5.24e-06,8.64e-05
1901,0.381,0.000408,5.72e-06,9.429999999999999e-05
1902,0.362,0.000388,5.4400000000000004e-06,8.97e-05
1903,0.336,0.000359,5.04e-06,8.309999999999999e-05
1904,0.358,0.000383,5.369999999999999e-06,8.86e-05
1905,0.282,0.00030199999999999997,4.24e-06,7.000000000000001e-05
1906,0.322,0.000345,4.83e-06,7.97e-05
1907,0.348,0.000373,5.22e-06,8.62e-05
1908,0.349,0.000374,5.24e-06,8.64e-05
1909,0.371,0.000398,5.58e-06,9.2e-05
1910,0.376,0.00040300000000000004,5.649999999999999e-06,9.32e-05
1911,0.369,0.000448,5.5399999999999995e-06,9.15e-05
1912,0.393,0.000625,5.91e-06,9.74e-05
1913,0.402,0.00087,6.03e-06,9.95e-05
1914,0.392,0.00117,5.88e-06,9.7e-05
1915,0.398,0.00155,5.98e-06,9.86e-05
1916,0.425,0.00199,6.38e-06,0.00010499999999999999
1917,0.383,0.0024,5.75e-06,9.48e-05
1918,0.158,0.00264,2.37e-06,3.92e-05
1919,0.168,0.00315,2.5300000000000003e-06,4.1700000000000004e-05
1920,0.15,0.00362,2.2499999999999996e-06,3.71e-05
1921,0.151,0.00414,2.27e-06,3.75e-05
1922,0.185,0.00478,2.78e-06,4.58e-05
1923,0.206,0.0054800000000000005,3.1e-06,5.11e-05
1924,0.225,0.00624,3.3700000000000003e-06,5.5599999999999996e-05
1925,0.233,0.0070599999999999994,3.49e-06,5.76e-05
1926,0.298,0.008,4.4799999999999995e-06,7.39e-05
1927,0.364,0.013099999999999999,5.459999999999999e-06,9.01e-05
1928,0.374,0.013800000000000002,5.62e-06,9.27e-05
1929,0.434,0.0157,6.519999999999999e-06,0.000107
1930,0.715,0.018600000000000002,1.07e-05,0.000177
1931,0.864,0.020300000000000002,1.3e-05,0.000214
1932,0.868,0.0218,1.3e-05,0.000215
1933,0.913,0.0219,1.3700000000000001e-05,0.00022600000000000002
1934,1.06,0.0252,1.6e-05,0.000263
1935,1.15,0.0288,1.73e-05,0.00028599999999999996
1936,1.28,0.033299999999999996,1.93e-05,0.00031800000000000003
1937,1.33,0.0345,2e-05,0.00032900000000000003
1938,1.41,0.037,2.11e-05,0.00034899999999999997
1939,1.42,0.0389,2.13e-05,0.000352
1940,1.57,0.040799999999999996,2.36e-05,0.000389
1941,1.5,0.0425,2.2499999999999998e-05,0.000371
1942,1.26,0.0421,1.89e-05,0.000312
1943,1.3,0.0419,1.95e-05,0.000321
1944,1.52,0.0419,2.2800000000000002e-05,0.000376
1945,1.09,0.0415,1.63e-05,0.00026900000000000003
1946,1.23,0.046700000000000005,1.85e-05,0.000305
1947,1.49,0.052,2.24e-05,0.00036899999999999997
1948,1.62,0.0582,2.4299999999999998e-05,0.00040100000000000004
1949,1.86,0.0643,2.8e-05,0.00046100000000000004
1950,2.07,0.073,3.11e-05,0.000514
1951,2.24,0.0831,3.37e-05,0.000555
1952,2.46,0.0969,3.7e-05,0.00061
1953,2.66,0.115,3.99e-05,0.0006590000000000001
1954,2.93,0.137,4.4e-05,0.000725
1955,3.37,0.163,5.06e-05,0.000834
1956,3.81,0.189,5.72e-05,0.0009429999999999999
1957,4.25,0.219,6.379999999999999e-05,0.0010500000000000002
1958,4.66,0.25,7.000000000000001e-05,0.00115
1959,5.01,0.282,7.53e-05,0.00124
1960,5.37,0.317,8.07e-05,0.00133
1961,5.71,0.348,8.58e-05,0.0014199999999999998
1962,6.24,0.384,9.37e-05,0.00155
1963,6.79,0.415,0.000102,0.0016799999999999999
1964,7.28,0.448,0.00010899999999999999,0.0018
1965,7.76,0.488,0.00011700000000000001,0.0019199999999999998
1966,8.27,0.529,0.000124,0.0020499999999999997
1967,8.88,0.565,0.000133,0.0022
1968,9.35,0.597,0.00014000000000000001,0.00232
1969,9.92,0.628,0.000149,0.00246
1970,10.6,0.631,0.00016,0.00264
1971,11.3,0.643,0.00017,0.00264
1972,12.1,0.661,0.000182,0.00264
1973,12.9,0.688,0.000194,0.00264
1974,13.7,0.705,0.000206,0.0030800000000000003
1975,14.5,0.73,0.000217,0.0030800000000000003
1976,14.9,0.748,0.000224,0.0030800000000000003
1977,15.4,0.759,0.000232,0.0030800000000000003
1978,16.4,0.767,0.000246,0.00352
1979,16.5,0.744,0.000248,0.00352
1980,17.0,0.766,0.000256,0.00352
1981,17.1,0.777,0.000257,0.00352
1982,17.3,0.773,0.000259,0.00396
1983,17.4,0.785,0.000261,0.00396
1984,17.3,0.793,0.000259,0.00396
1985,17.9,0.799,0.000268,0.00396
1986,17.9,0.815,0.000268,0.0044
1987,18.4,0.825,0.00027600000000000004,0.0044
1988,18.5,0.834,0.00027800000000000004,0.0044
1989,18.3,0.838,0.00027400000000000005,0.0044
1990,17.6,0.831,0.000285,0.00484
1991,17.3,0.776,0.000294,0.0044
1992,14.0,0.547,0.000304,0.00396
1993,11.9,0.423,0.000313,0.00396
1994,10.8,0.483,0.000323,0.00352
1995,9.34,0.482,0.000332,0.00352
1996,8.99,0.492,0.000342,0.0030800000000000003
1997,8.34,0.524,0.00035099999999999997,0.00264
1998,7.88,0.523,0.00035999999999999997,0.00675
1999,6.78,0.556,0.000372,0.009529999999999999
2000,6.35,0.508,0.00074,0.00887
2001,6.99,0.531,0.00141,0.0108
2002,6.78,0.536,0.000178,0.00601
2003,7.22,0.548,0.000216,0.00675
2004,7.26,0.584,0.000225,0.0011
2005,7.37,0.594,0.000231,0.0011
2006,7.88,0.693,0.000843,0.00103
2007,8.17,0.743,0.00058,0.0009170000000000001
2008,7.75,0.743,0.000321,0.0011200000000000001
2009,7.05,0.736,0.000215,0.00147
2010,7.76,0.988,0.000215,0.00292
2011,6.92,1.09,6.7600000000000005e-06,0.00297
2012,6.61,1.21,1.6899999999999997e-05,0.0037099999999999998
2013,6.58,1.06,2.23e-05,0.0037
2014,6.38,1.03,2.94e-05,0.00296
2015,6.54,0.948,9.37e-06,0.00378
2016,6.81,0.89,9.04e-06,0.0111
2017,6.68,0.986,1.49e-05,0.0111
2018,6.66,0.991,2.07e-05,0.0111