year,IPC1,IPC2,IPC4,IPCMAG
1850,0.00019,1.9e-07,5.75e-09,3.1600000000000002e-06
1851,0.000231,2.3100000000000002e-07,6.9700000000000005e-09,3.8400000000000005e-06
1852,0.000303,3.03e-07,9.17e-09,5.04e-06
1853,0.000395,3.9500000000000003e-07,1.1899999999999999e-08,6.56e-06
1854,0.000491,4.9e-07,1.48e-08,8.15e-06
1855,0.0005769999999999999,5.77e-07,1.74e-08,9.6e-06
1856,0.0006590000000000001,6.59e-07,1.99e-08,1.1e-05
1857,0.000742,7.41e-07,2.24e-08,1.23e-05
1858,0.0008110000000000001,8.1e-07,2.4499999999999998e-08,1.35e-05
1859,0.00086,8.6e-07,2.5999999999999998e-08,1.43e-05
1860,0.00124,1.24e-06,3.7400000000000004e-08,2.06e-05
1861,0.00155,1.55e-06,4.68e-08,2.58e-05
1862,0.0014,1.4e-06,4.24e-08,2.33e-05
1863,0.0015300000000000001,1.53e-06,4.62e-08,2.5399999999999997e-05
1864,0.00176,1.76e-06,5.33e-08,2.93e-05
1865,0.00173,1.73e-06,5.2200000000000004e-08,2.87e-05
1866,0.00492,4.9199999999999995e-06,1.49e-07,8.18e-05
1867,0.005730000000000001,5.73e-06,1.73e-07,9.520000000000001e-05
1868,0.00521,5.21e-06,1.57e-07,8.659999999999999e-05
1869,0.00675,6.75e-06,2.04e-07,0.000112
1870,0.00726,7.26e-06,2.1900000000000002e-07,0.000121
1871,0.0094,9.4e-06,2.84e-07,0.000156
1872,0.009699999999999999,9.7e-06,2.9300000000000004e-07,0.000161
1873,0.01,1e-05,3.03e-07,0.000166
1874,0.0127,1.2699999999999999e-05,3.8499999999999997e-07,0.000212
1875,0.0157,1.57e-05,4.7600000000000003e-07,0.000262
1876,0.0211,2.11e-05,6.37e-07,0.00035099999999999997
1877,0.0241,2.41e-05,7.29e-07,0.00040100000000000004
1878,0.030600000000000002,3.06e-05,9.240000000000001e-07,0.000508
1879,0.0338,3.3799999999999995e-05,1.02e-06,0.0005620000000000001
1880,0.0391,3.91e-05,1.1800000000000001e-06,0.00065
1881,0.046299999999999994,4.63e-05,1.4e-06,0.0007700000000000001
1882,0.0495,4.9500000000000004e-05,1.5e-06,0.0008219999999999999
1883,0.0555,5.55e-05,1.68e-06,0.000923
1884,0.0677,6.769999999999999e-05,2.0500000000000003e-06,0.00113
1885,0.0805,8.05e-05,2.43e-06,0.00134
1886,0.0832,8.319999999999999e-05,2.52e-06,0.00138
1887,0.0983,9.83e-05,2.97e-06,0.00163
1888,0.105,0.00010499999999999999,3.18e-06,0.00175
1889,0.108,0.000108,3.2599999999999997e-06,0.0018
1890,0.128,0.000128,3.88e-06,0.00213
1891,0.151,0.00015099999999999998,4.58e-06,0.00252
1892,0.158,0.000158,4.79e-06,0.00263
1893,0.187,0.000187,5.64e-06,0.0031
1894,0.177,0.000177,5.35e-06,0.00294
1895,0.229,0.000229,6.910000000000001e-06,0.0038
1896,0.229,0.000229,6.92e-06,0.00381
1897,0.262,0.000262,7.92e-06,0.00435
1898,0.295,0.00029499999999999996,8.920000000000001e-06,0.00491
1899,0.324,0.000324,9.8e-06,0.00539
1900,0.374,0.000375,1.1299999999999999e-05,0.00623
1901,0.409,0.00040899999999999997,1.24e-05,0.0068
1902,0.389,0.000389,1.18e-05,0.00647
1903,0.36,0.00035999999999999997,1.09e-05,0.0059900000000000005
1904,0.384,0.000384,1.1599999999999999e-05,0.00639
1905,0.303,0.000303,9.169999999999999e-06,0.00504
1906,0.345,0.000345,1.0399999999999999e-05,0.00574
1907,0.373,0.000373,1.1299999999999999e-05,0.00621
1908,0.375,0.000375,1.1299999999999999e-05,0.00623
1909,0.399,0.000399,1.21e-05,0.00663
1910,0.404,0.000404,1.22e-05,0.006719999999999999
1911,0.396,0.00040899999999999997,1.2e-05,0.0065899999999999995
1912,0.422,0.00046899999999999996,1.2800000000000001e-05,0.007019999999999999
1913,0.431,0.000533,1.3e-05,0.00717
1914,0.42,0.000594,1.2699999999999999e-05,0.0069900000000000006
1915,0.427,0.0006860000000000001,1.29e-05,0.00711
1916,0.456,0.000812,1.38e-05,0.0075899999999999995
1917,0.411,0.0008719999999999999,1.24e-05,0.00683
1918,0.17,0.000741,5.13e-06,0.00282
1919,0.181,0.000866,5.47e-06,0.0030099999999999997
1920,0.161,0.0009599999999999999,4.86e-06,0.00268
1921,0.162,0.00108,4.9100000000000004e-06,0.0027
1922,0.199,0.00126,6.01e-06,0.0033
1923,0.222,0.0014399999999999999,6.7e-06,0.00369
1924,0.241,0.00163,7.29e-06,0.00401
1925,0.25,0.00182,7.5500000000000006e-06,0.00415
1926,0.32,0.0021000000000000003,9.69e-06,0.00533
1927,0.391,0.00865,1.18e-05,0.0065
1928,0.402,0.00836,1.21e-05,0.006679999999999999
1929,0.466,0.01,1.41e-05,0.00775
1930,0.768,0.0128,2.3199999999999998e-05,0.0128
1931,0.927,0.013900000000000001,2.8e-05,0.0154
1932,0.932,0.0145,2.82e-05,0.0155
1933,0.98,0.0126,2.96e-05,0.016300000000000002
1934,1.14,0.0156,3.4500000000000005e-05,0.019
1935,1.24,0.0188,3.74e-05,0.0206
1936,1.38,0.023399999999999997,4.1700000000000004e-05,0.0229
1937,1.43,0.0229,4.32e-05,0.0237
1938,1.51,0.0242,4.57e-05,0.0251
1939,1.52,0.0247,4.61e-05,0.0254
1940,1.68,0.0249,5.0900000000000004e-05,0.028
1941,1.61,0.0252,4.87e-05,0.0268
1942,1.35,0.0225,4.09e-05,0.0225
1943,1.39,0.02,4.21e-05,0.0232
1944,1.63,0.0178,4.92e-05,0.027100000000000003
1945,1.17,0.0149,3.53e-05,0.019399999999999997
1946,1.32,0.0201,4e-05,0.022
1947,1.6,0.025,4.84e-05,0.026600000000000002
1948,1.74,0.030899999999999997,5.2499999999999995e-05,0.0289
1949,2.0,0.0359,6.0400000000000004e-05,0.0332
1950,2.23,0.0442,6.73e-05,0.037
1951,2.41,0.0513,7.280000000000001e-05,0.04
1952,2.64,0.0588,7.99e-05,0.044
1953,2.85,0.0676,8.63e-05,0.0475
1954,3.14,0.0805,9.5e-05,0.0523
1955,3.61,0.09540000000000001,0.00010899999999999999,0.0601
1956,4.09,0.107,0.000124,0.068
1957,4.56,0.125,0.00013800000000000002,0.07579999999999999
1958,5.0,0.143,0.00015099999999999998,0.0832
1959,5.38,0.164,0.000163,0.0895
1960,5.77,0.189,0.000174,0.0959
1961,6.14,0.209,0.000186,0.102
1962,6.7,0.234,0.000203,0.111
1963,7.29,0.25,0.000221,0.121
1964,7.82,0.268,0.000236,0.13
1965,8.34,0.295,0.000252,0.139
1966,8.88,0.324,0.000268,0.148
1967,9.54,0.344,0.00028799999999999995,0.159
1968,10.0,0.359,0.000304,0.167
1969,10.6,0.372,0.000322,0.177
1970,11.4,0.386,0.000345,0.19
1971,12.1,0.406,0.000367,0.19
1972,13.0,0.428,0.00039400000000000004,0.19
1973,13.9,0.459,0.000419,0.19
1974,14.7,0.484,0.00044500000000000003,0.222
1975,15.5,0.518,0.00046899999999999996,0.222
1976,16.0,0.535,0.000484,0.222
1977,16.6,0.549,0.000501,0.222
1978,17.6,0.556,0.000532,0.254
1979,17.8,0.535,0.000537,0.254
1980,18.3,0.555,0.0005520000000000001,0.254
1981,18.4,0.57,0.000555,0.254
1982,18.6,0.564,0.0005610000000000001,0.285
1983,18.7,0.585,0.000565,0.285
1984,18.5,0.598,0.0005600000000000001,0.285
1985,19.2,0.608,0.000579,0.285
1986,19.2,0.63,0.000579,0.317
1987,19.7,0.645,0.000596,0.317
1988,19.9,0.66,0.000602,0.317
1989,19.6,0.668,0.000593,0.317
1990,18.5,0.67,0.000575,0.365
1991,17.0,0.601,0.000594,0.23
1992,13.7,0.317,0.0006129999999999999,0.0362
1993,11.7,0.157,0.000632,0.00393
1994,10.1,0.202,0.000651,0.0024300000000000003
1995,8.88,0.214,0.00067,0.00191
1996,8.95,0.225,0.0006889999999999999,0.00149
1997,8.41,0.24,0.000708,0.00132
1998,8.04,0.244,0.000727,0.0033
1999,7.43,0.276,0.00075,0.0033599999999999997
2000,6.84,0.224,0.0011899999999999999,0.006019999999999999
2001,7.23,0.245,0.0023599999999999997,0.00217
2002,7.24,0.255,0.00030199999999999997,0.0195
2003,7.44,0.269,0.00036899999999999997,0.0261
2004,7.45,0.286,0.000446,0.0024300000000000003
2005,7.55,0.258,0.00044500000000000003,0.00294
2006,8.02,0.283,0.0015300000000000001,0.0028
2007,8.34,0.287,0.0012,0.00633
2008,7.92,0.274,0.000505,0.00592
2009,7.19,0.259,0.00034,0.00834
2010,8.02,0.527,0.00034100000000000005,0.00597
2011,7.18,0.621,0.00034399999999999996,0.012199999999999999
2012,6.82,0.679,0.000323,0.0157
2013,6.76,0.608,0.00042699999999999997,0.0173
2014,6.55,0.608,0.0005629999999999999,0.0237
2015,6.73,0.523,0.00017999999999999998,0.0261
2016,6.79,0.407,0.00017299999999999998,0.0305
2017,6.7,0.486,0.00028599999999999996,0.0339
2018,7.21,0.608,0.000397,0.0445