year,IPC1,IPC2,IPC4,IPCMAG
1850,0.000771,0.00452,2.5e-06,4.9100000000000004e-06
1851,0.000812,0.0047599999999999995,2.63e-06,5.1700000000000005e-06
1852,0.000856,0.00501,2.7699999999999997e-06,5.45e-06
1853,0.000903,0.00529,2.92e-06,5.75e-06
1854,0.0009519999999999999,0.00558,3.09e-06,6.0600000000000004e-06
1855,0.001,0.00588,3.25e-06,6.4000000000000006e-06
1856,0.00106,0.00621,3.4299999999999998e-06,6.740000000000001e-06
1857,0.0011200000000000001,0.00654,3.62e-06,7.11e-06
1858,0.0011799999999999998,0.006889999999999999,3.81e-06,7.4799999999999995e-06
1859,0.00124,0.00724,4.01e-06,7.870000000000001e-06
1860,0.0013,0.0076100000000000004,4.21e-06,8.269999999999999e-06
1861,0.0013700000000000001,0.008,4.42e-06,8.69e-06
1862,0.0014299999999999998,0.008400000000000001,4.64e-06,9.129999999999999e-06
1863,0.00151,0.00882,4.88e-06,9.58e-06
1864,0.00158,0.00926,5.12e-06,1.01e-05
1865,0.00166,0.009720000000000001,5.369999999999999e-06,1.06e-05
1866,0.00174,0.010199999999999999,5.64e-06,1.11e-05
1867,0.00183,0.0107,5.91e-06,1.1599999999999999e-05
1868,0.00191,0.0112,6.2e-06,1.22e-05
1869,0.0020099999999999996,0.011800000000000001,6.5e-06,1.2800000000000001e-05
1870,0.0021000000000000003,0.0123,6.82e-06,1.34e-05
1871,0.00221,0.0129,7.15e-06,1.4e-05
1872,0.00232,0.0136,7.499999999999999e-06,1.47e-05
1873,0.0024300000000000003,0.014199999999999999,7.870000000000001e-06,1.55e-05
1874,0.0025499999999999997,0.0149,8.269999999999999e-06,1.62e-05
1875,0.00268,0.0157,8.68e-06,1.7e-05
1876,0.00281,0.0165,9.100000000000001e-06,1.7899999999999998e-05
1877,0.00294,0.0173,9.54e-06,1.87e-05
1878,0.0030800000000000003,0.0181,9.990000000000001e-06,1.96e-05
1879,0.00323,0.0189,1.0500000000000001e-05,2.05e-05
1880,0.00337,0.0197,1.09e-05,2.1499999999999997e-05
1881,0.00352,0.0206,1.1400000000000001e-05,2.24e-05
1882,0.00367,0.0215,1.1900000000000001e-05,2.34e-05
1883,0.00383,0.0224,1.24e-05,2.44e-05
1884,0.0039900000000000005,0.023399999999999997,1.29e-05,2.5399999999999997e-05
1885,0.00415,0.024300000000000002,1.35e-05,2.64e-05
1886,0.00433,0.0253,1.4e-05,2.75e-05
1887,0.00451,0.0264,1.46e-05,2.87e-05
1888,0.004690000000000001,0.0275,1.52e-05,2.99e-05
1889,0.00488,0.0286,1.58e-05,3.11e-05
1890,0.00545,0.0282,1.77e-05,3.47e-05
1891,0.00574,0.0282,1.83e-05,3.59e-05
1892,0.00623,0.0282,1.9e-05,3.7199999999999996e-05
1893,0.006900000000000001,0.0282,1.9699999999999998e-05,3.87e-05
1894,0.00775,0.0282,2.05e-05,4.0300000000000004e-05
1895,0.00874,0.0282,2.14e-05,4.21e-05
1896,0.009859999999999999,0.0282,2.24e-05,4.39e-05
1897,0.0111,0.0282,2.34e-05,4.5900000000000004e-05
1898,0.0124,0.0282,2.44e-05,4.8e-05
1899,0.013800000000000002,0.0282,2.55e-05,5.01e-05
1900,0.0152,0.0282,2.66e-05,5.23e-05
1901,0.017,0.0282,2.79e-05,5.4800000000000004e-05
1902,0.019399999999999997,0.0282,2.93e-05,5.76e-05
1903,0.0223,0.0282,3.09e-05,6.08e-05
1904,0.0256,0.0282,3.27e-05,6.419999999999999e-05
1905,0.0281,0.0282,3.13e-05,6.15e-05
1906,0.053,0.028300000000000002,0.000102,0.000201
1907,0.0792,0.028300000000000002,0.000177,0.000348
1908,0.106,0.028399999999999998,0.000256,0.000502
1909,0.134,0.028399999999999998,0.000337,0.000662
1910,0.163,0.028399999999999998,0.000423,0.0008309999999999999
1911,0.189,0.0285,0.000501,0.000985
1912,0.229,0.0286,0.000626,0.00123
1913,0.262,0.0288,0.000728,0.0014299999999999998
1914,0.36,0.029,0.0010400000000000001,0.0020499999999999997
1915,0.442,0.0292,0.0013,0.0025499999999999997
1916,0.375,0.0295,0.00108,0.00212
1917,0.373,0.0297,0.00107,0.0021000000000000003
1918,0.374,0.0299,0.00106,0.00209
1919,0.437,0.030199999999999998,0.00126,0.00248
1920,0.555,0.0304,0.00164,0.00322
1921,0.597,0.030600000000000002,0.00176,0.00346
1922,0.613,0.030699999999999998,0.0018,0.00354
1923,0.726,0.030899999999999997,0.00215,0.00423
1924,0.764,0.031100000000000003,0.00226,0.00445
1925,1.19,0.0312,0.00361,0.00709
1926,1.27,0.0314,0.0038799999999999998,0.00762
1927,1.32,0.0316,0.004019999999999999,0.00789
1928,1.52,0.0318,0.00463,0.009089999999999999
1929,1.74,0.032100000000000004,0.00532,0.0104
1930,1.65,0.032299999999999995,0.00501,0.00985
1931,1.75,0.032600000000000004,0.00531,0.0104
1932,2.06,0.0329,0.00626,0.0123
1933,2.42,0.0332,0.00737,0.0145
1934,3.11,0.039299999999999995,0.00957,0.0188
1935,3.58,0.046,0.011,0.0217
1936,4.18,0.0492,0.0129,0.0254
1937,4.46,0.0522,0.013800000000000002,0.027100000000000003
1938,6.22,0.0598,0.019399999999999997,0.0381
1939,7.67,0.0676,0.024,0.047200000000000006
1940,10.3,0.0373,0.0325,0.064
1941,11.1,0.0736,0.0349,0.0686
1942,12.3,0.0751,0.038799999999999994,0.07629999999999999
1943,11.9,0.0879,0.0373,0.0734
1944,12.8,0.0871,0.04,0.0785
1945,6.95,0.0765,0.0208,0.040799999999999996
1946,1.09,0.09029999999999999,0.00156,0.0030600000000000002
1947,1.57,0.11,0.00287,0.0056500000000000005
1948,2.41,0.127,0.00539,0.0106
1949,2.97,0.151,0.007019999999999999,0.013800000000000002
1950,3.03,0.168,0.00707,0.013900000000000001
1951,3.81,0.195,0.009470000000000001,0.018600000000000002
1952,4.37,0.259,0.0112,0.0219
1953,5.63,0.327,0.015099999999999999,0.0297
1954,6.12,0.415,0.0166,0.0327
1955,7.44,0.509,0.0208,0.0409
1956,8.59,0.61,0.024399999999999998,0.048
1957,9.26,0.754,0.0265,0.052
1958,9.98,0.982,0.0287,0.0564
1959,12.2,1.15,0.0358,0.0704
1960,13.5,1.34,0.0399,0.0785
1961,15.5,1.55,0.046,0.09040000000000001
1962,18.2,1.9,0.054700000000000006,0.107
1963,22.1,2.14,0.06709999999999999,0.132
1964,23.1,2.67,0.07,0.138
1965,25.8,3.18,0.07840000000000001,0.154
1966,30.8,3.69,0.0942,0.185
1967,35.7,4.38,0.11,0.216
1968,37.4,5.4,0.115,0.226
1969,42.1,6.52,0.13,0.255
1970,53.6,6.51,0.135,0.167
1971,57.9,7.18,0.135,0.174
1972,60.0,7.07,0.143,0.175
1973,72.6,8.0,0.15,0.203
1974,75.1,8.41,0.158,0.273
1975,80.5,9.3,0.166,0.354
1976,92.1,10.5,0.174,0.247
1977,104.0,11.9,0.183,0.24
1978,108.0,12.9,0.192,0.262
1979,128.0,14.5,0.201,0.223
1980,129.0,13.5,0.211,0.213
1981,134.0,13.8,0.22,0.189
1982,135.0,14.0,0.23,0.134
1983,146.0,15.6,0.239,0.17
1984,167.0,15.5,0.249,0.182
1985,186.0,15.6,0.258,0.19
1986,188.0,17.2,0.268,0.19
1987,195.0,18.8,0.279,0.205
1988,223.0,21.1,0.289,0.21
1989,235.0,22.2,0.299,0.224
1990,244.0,24.5,0.327,0.224
1991,255.0,26.3,0.44,0.191
1992,267.0,30.7,0.546,0.187
1993,303.0,35.4,0.665,0.176
1994,322.0,38.6,0.703,0.179
1995,350.0,40.4,0.959,0.173
1996,377.0,41.3,1.08,0.164
1997,402.0,43.6,1.2,0.228
1998,344.0,38.0,1.12,0.175
1999,378.0,39.4,1.31,0.16
2000,426.0,40.8,1.75,0.154
2001,429.0,41.7,1.85,0.168
2002,445.0,43.3,1.58,0.102
2003,443.0,44.4,1.59,0.112
2004,461.0,43.3,1.59,0.147
2005,448.0,40.8,1.37,0.134
2006,452.0,40.9,1.52,0.13
2007,476.0,43.1,1.35,0.135
2008,488.0,43.7,1.33,0.0993
2009,489.0,42.4,1.3,0.0863
2010,548.0,43.8,1.27,0.0731
2011,573.0,44.8,1.4,0.0584
2012,570.0,44.8,1.54,0.0587
2013,578.0,43.1,1.57,0.09440000000000001
2014,573.0,43.7,1.42,0.104
2015,578.0,45.0,1.43,0.105
2016,584.0,45.8,1.46,0.106
2017,598.0,45.5,1.49,0.106
2018,614.0,45.2,1.52,0.106