year,IPC1,IPC2,IPC4,IPCMAG
1850,0.0016699999999999998,0.0,0.00667,0.0201
1851,0.0016899999999999999,8.18e-09,0.0067,0.0208
1852,0.00171,1.63e-08,0.006719999999999999,0.0214
1853,0.00173,2.4300000000000003e-08,0.00675,0.0221
1854,0.00175,3.22e-08,0.0067800000000000004,0.0228
1855,0.00177,4.01e-08,0.006809999999999999,0.023399999999999997
1856,0.0017900000000000001,4.79e-08,0.00684,0.0241
1857,0.00181,5.56e-08,0.00687,0.0247
1858,0.00183,6.329999999999999e-08,0.006900000000000001,0.0253
1859,0.00185,7.08e-08,0.00694,0.0259
1860,0.00188,7.83e-08,0.00697,0.026600000000000002
1861,0.0019,8.569999999999999e-08,0.00701,0.0272
1862,0.0019199999999999998,9.309999999999999e-08,0.00705,0.027800000000000002
1863,0.0019399999999999999,1.0000000000000001e-07,0.00709,0.028399999999999998
1864,0.00196,1.08e-07,0.00713,0.029
1865,0.00199,1.15e-07,0.00717,0.0296
1866,0.0020099999999999996,1.22e-07,0.00722,0.030100000000000002
1867,0.0020299999999999997,1.29e-07,0.00726,0.030699999999999998
1868,0.00206,1.36e-07,0.00731,0.0313
1869,0.0020800000000000003,1.43e-07,0.00736,0.0319
1870,0.0021000000000000003,1.49e-07,0.00741,0.0324
1871,0.00213,1.56e-07,0.00746,0.033
1872,0.00215,1.6300000000000002e-07,0.00752,0.033600000000000005
1873,0.00217,1.69e-07,0.00758,0.0341
1874,0.0022,1.76e-07,0.00764,0.0347
1875,0.00222,1.83e-07,0.00771,0.0352
1876,0.00225,1.89e-07,0.00777,0.0357
1877,0.00227,1.9499999999999999e-07,0.00784,0.0363
1878,0.00229,2.02e-07,0.0079,0.0368
1879,0.00232,2.0799999999999998e-07,0.00797,0.037399999999999996
1880,0.00234,2.14e-07,0.008029999999999999,0.037899999999999996
1881,0.00237,2.2e-07,0.0081,0.0384
1882,0.00239,2.2599999999999999e-07,0.00816,0.0389
1883,0.00242,2.33e-07,0.008230000000000001,0.0395
1884,0.00244,2.39e-07,0.0083,0.04
1885,0.0024700000000000004,2.44e-07,0.008369999999999999,0.0405
1886,0.00249,2.5e-07,0.00843,0.041
1887,0.00252,2.5599999999999996e-07,0.0085,0.0415
1888,0.0025499999999999997,2.6200000000000004e-07,0.00857,0.042
1889,0.00257,2.68e-07,0.00864,0.0426
1890,0.00377,4.18e-07,0.00884,0.0429
1891,0.00437,4.48e-07,0.00885,0.0429
1892,0.005,4.85e-07,0.00887,0.043
1893,0.00564,5.280000000000001e-07,0.0089,0.043
1894,0.0063,5.76e-07,0.00894,0.0431
1895,0.00698,6.29e-07,0.00898,0.0432
1896,0.00767,6.87e-07,0.00904,0.0433
1897,0.00839,7.489999999999999e-07,0.0091,0.0434
1898,0.00912,8.140000000000001e-07,0.00917,0.0435
1899,0.009859999999999999,8.82e-07,0.00924,0.0436
1900,0.0106,9.520000000000001e-07,0.00931,0.0437
1901,0.0115,1.03e-06,0.0094,0.0439
1902,0.0125,1.13e-06,0.009529999999999999,0.0441
1903,0.0136,1.25e-06,0.00968,0.0443
1904,0.0148,1.37e-06,0.009859999999999999,0.0445
1905,0.0159,1.5e-06,0.0101,0.0448
1906,0.017,1.62e-06,0.0103,0.0451
1907,0.0179,1.74e-06,0.0105,0.045399999999999996
1908,0.018600000000000002,1.85e-06,0.0107,0.0456
1909,0.019100000000000002,1.95e-06,0.0109,0.045899999999999996
1910,0.0193,2.02e-06,0.0111,0.046200000000000005
1911,0.0193,2.08e-06,0.011300000000000001,0.0465
1912,0.0192,2.13e-06,0.0115,0.046700000000000005
1913,0.019100000000000002,2.17e-06,0.011699999999999999,0.0469
1914,0.019,2.21e-06,0.0119,0.047200000000000006
1915,0.0189,2.2499999999999996e-06,0.0121,0.0474
1916,0.018699999999999998,2.29e-06,0.0123,0.047700000000000006
1917,0.018600000000000002,2.32e-06,0.0126,0.048
1918,0.0185,2.3600000000000003e-06,0.0128,0.0484
1919,0.0184,2.41e-06,0.013,0.048799999999999996
1920,0.0184,2.4599999999999997e-06,0.013300000000000001,0.0493
1921,0.019100000000000002,2.51e-06,0.0135,0.0504
1922,0.0208,2.57e-06,0.013699999999999999,0.0523
1923,0.023600000000000003,2.63e-06,0.014,0.055
1924,0.027100000000000003,2.69e-06,0.014199999999999999,0.0582
1925,0.0312,2.76e-06,0.0145,0.061799999999999994
1926,0.0358,2.83e-06,0.0148,0.06559999999999999
1927,0.0405,2.9099999999999997e-06,0.015,0.0693
1928,0.0453,2.99e-06,0.015300000000000001,0.073
1929,0.05,3.0799999999999997e-06,0.0156,0.0762
1930,0.0544,3.18e-06,0.0159,0.079
1931,0.0584,3.29e-06,0.0161,0.0813
1932,0.062200000000000005,3.4299999999999998e-06,0.016399999999999998,0.0835
1933,0.066,3.59e-06,0.0167,0.0856
1934,0.0699,3.77e-06,0.017,0.0876
1935,0.0741,3.95e-06,0.0173,0.0895
1936,0.07859999999999999,4.139999999999999e-06,0.0177,0.09140000000000001
1937,0.0837,4.33e-06,0.018,0.09340000000000001
1938,0.0895,4.52e-06,0.0183,0.09540000000000001
1939,0.09609999999999999,4.7e-06,0.018699999999999998,0.0974
1940,0.104,4.86e-06,0.019,0.0997
1941,0.114,5.0099999999999995e-06,0.019399999999999997,0.102
1942,0.129,5.14e-06,0.0197,0.104
1943,0.147,5.26e-06,0.0201,0.107
1944,0.169,5.38e-06,0.020399999999999998,0.109
1945,0.193,5.5e-06,0.0208,0.111
1946,0.22,5.62e-06,0.0212,0.114
1947,0.249,5.760000000000001e-06,0.0217,0.117
1948,0.28,5.92e-06,0.0222,0.119
1949,0.312,6.1e-06,0.0228,0.122
1950,0.345,6.3200000000000005e-06,0.023399999999999997,0.126
1951,0.379,6.6e-06,0.024300000000000002,0.13
1952,0.416,6.98e-06,0.0254,0.134
1953,0.456,7.45e-06,0.026699999999999998,0.14
1954,0.5,7.99e-06,0.0282,0.146
1955,0.548,8.57e-06,0.0298,0.152
1956,0.6,9.19e-06,0.0316,0.157
1957,0.657,9.83e-06,0.0335,0.163
1958,0.72,1.0500000000000001e-05,0.0354,0.167
1959,0.788,1.11e-05,0.037399999999999996,0.17
1960,0.863,1.17e-05,0.0394,0.172
1961,0.935,1.23e-05,0.0415,0.162
1962,1.0,1.31e-05,0.0438,0.167
1963,1.08,1.3899999999999999e-05,0.046299999999999994,0.17
1964,1.16,1.47e-05,0.0489,0.172
1965,1.27,1.55e-05,0.0516,0.172
1966,1.41,1.62e-05,0.0544,0.18
1967,1.58,1.68e-05,0.0571,0.195
1968,1.8,1.74e-05,0.0599,0.206
1969,2.08,1.77e-05,0.0626,0.209
1970,2.13,1.78e-05,0.06470000000000001,0.207
1971,2.75,1.7500000000000002e-05,0.069,0.21
1972,2.51,1.72e-05,0.072,0.199
1973,2.95,1.85e-05,0.0752,0.184
1974,3.15,1.78e-05,0.0783,0.17
1975,3.44,2.14e-05,0.0815,0.16
1976,4.32,5.69e-05,0.0857,0.163
1977,3.49,4.4999999999999996e-05,0.08929999999999999,0.167
1978,3.66,3.2800000000000004e-05,0.09340000000000001,0.161
1979,4.8,4.07e-05,0.0989,0.161
1980,3.78,2.99e-05,0.104,0.166
1981,1.33,2.9e-05,0.105,0.169
1982,1.39,3.57e-05,0.106,0.166
1983,1.34,4.0300000000000004e-05,0.11,0.162
1984,1.64,3.3e-05,0.113,0.153
1985,2.13,3.43e-05,0.117,0.147
1986,2.53,3.43e-05,0.12,0.145
1987,2.14,3.43e-05,0.123,0.151
1988,2.05,3.43e-05,0.128,0.147
1989,2.17,3.43e-05,0.133,0.154
1990,1.8,3.43e-05,0.136,0.158
1991,1.44,2.76e-05,0.135,0.113
1992,1.32,1.52e-05,0.139,0.132
1993,1.19,8.580000000000001e-06,0.146,0.156
1994,1.0,8.580000000000001e-06,0.148,0.16
1995,0.977,8.580000000000001e-06,0.152,0.151
1996,0.885,8.580000000000001e-06,0.157,0.122
1997,1.32,8.580000000000001e-06,0.162,0.136
1998,1.43,8.580000000000001e-06,0.167,0.143
1999,1.54,8.580000000000001e-06,0.172,0.139
2000,1.49,8.580000000000001e-06,0.177,0.136
2001,1.51,8.580000000000001e-06,0.182,0.134
2002,1.33,8.580000000000001e-06,0.188,0.138
2003,1.24,8.580000000000001e-06,0.19,0.108
2004,1.5,8.580000000000001e-06,0.193,0.119
2005,1.41,8.580000000000001e-06,0.196,0.137
2006,1.46,8.580000000000001e-06,0.2,0.142
2007,1.38,8.580000000000001e-06,0.206,0.149
2008,1.48,8.580000000000001e-06,0.211,0.152
2009,1.67,6.8599999999999995e-06,0.217,0.179
2010,1.83,5.15e-06,0.224,0.181
2011,1.94,3.4299999999999998e-06,0.232,0.191
2012,1.93,1.72e-06,0.24,0.196
2013,2.01,4.49e-06,0.248,0.184
2014,2.1,4.13e-06,0.257,0.185
2015,2.4,3.76e-06,0.264,0.135
2016,2.23,3.3899999999999997e-06,0.263,0.142
2017,2.29,3.0200000000000003e-06,0.269,0.148
2018,2.36,2.66e-06,0.275,0.151