year,IPC1,IPC2,IPC4,IPCMAG
1850,0.0,0.0,0.0,0.0
1851,0.0,0.0,0.0,0.0
1852,0.0,0.0,0.0,0.0
1853,0.0,0.0,0.0,0.0
1854,0.0,0.0,0.0,0.0
1855,0.0,0.0,0.0,0.0
1856,0.0,0.0,0.0,0.0
1857,0.0,0.0,0.0,0.0
1858,0.0,0.0,0.0,0.0
1859,0.0,0.0,0.0,0.0
1860,0.0,0.0,0.0,0.0
1861,0.0,0.0,0.0,0.0
1862,0.0,0.0,0.0,0.0
1863,0.0,0.0,0.0,0.0
1864,0.0,0.0,0.0,0.0
1865,0.0,0.0,0.0,0.0
1866,0.0,0.0,0.0,0.0
1867,0.0,0.0,0.0,0.0
1868,0.0,0.0,0.0,0.0
1869,0.0,0.0,0.0,0.0
1870,0.0,0.0,0.0,0.0
1871,0.0,0.0,0.0,0.0
1872,0.0,0.0,0.0,0.0
1873,0.0,0.0,0.0,0.0
1874,0.0,0.0,0.0,0.0
1875,0.0,0.0,0.0,0.0
1876,0.0,0.0,0.0,0.0
1877,0.0,0.0,0.0,0.0
1878,0.0,0.0,0.0,0.0
1879,0.0,0.0,0.0,0.0
1880,0.0,0.0,0.0,0.0
1881,8.29e-05,0.00113,9.02e-09,2.82e-06
1882,0.00019600000000000002,0.00268,2.13e-08,6.67e-06
1883,0.000333,0.00456,3.63e-08,1.1400000000000001e-05
1884,0.00049,0.00671,5.33e-08,1.67e-05
1885,0.000661,0.00906,7.2e-08,2.2499999999999998e-05
1886,0.0008629999999999999,0.011800000000000001,9.4e-08,2.94e-05
1887,0.00111,0.0152,1.21e-07,3.78e-05
1888,0.00139,0.019,1.5100000000000002e-07,4.72e-05
1889,0.0016799999999999999,0.023,1.83e-07,5.73e-05
1890,0.00198,0.0173,2.16e-07,6.759999999999999e-05
1891,0.00231,0.0173,2.52e-07,7.89e-05
1892,0.00256,0.0173,2.79e-07,8.730000000000001e-05
1893,0.00454,0.0173,4.95e-07,0.000155
1894,0.00866,0.0174,9.44e-07,0.000296
1895,0.00866,0.0174,9.44e-07,0.000296
1896,0.00965,0.0174,1.05e-06,0.00033
1897,0.00751,0.0174,8.189999999999999e-07,0.000256
1898,0.0114,0.0174,1.24e-06,0.000389
1899,0.013300000000000001,0.0175,1.4499999999999999e-06,0.00045400000000000003
1900,0.018,0.0175,1.96e-06,0.000614
1901,0.019600000000000003,0.0175,2.14e-06,0.000671
1902,0.0184,0.0175,2.0100000000000002e-06,0.000628
1903,0.02,0.0176,2.18e-06,0.0006820000000000001
1904,0.0213,0.0176,2.32e-06,0.000727
1905,0.023100000000000002,0.0176,2.52e-06,0.000789
1906,0.0277,0.0177,3.01e-06,0.000944
1907,0.0282,0.0177,3.07e-06,0.0009609999999999999
1908,0.0303,0.0178,3.3e-06,0.00103
1909,0.031100000000000003,0.0178,3.3899999999999997e-06,0.00106
1910,0.0308,0.0179,3.36e-06,0.0010500000000000002
1911,0.0334,0.0179,3.63e-06,0.00114
1912,0.0342,0.018,3.7200000000000004e-06,0.00117
1913,0.0937,0.018,1.02e-05,0.0032
1914,0.09179999999999999,0.0181,1e-05,0.00314
1915,0.0869,0.0182,9.48e-06,0.00297
1916,0.0805,0.0182,8.779999999999999e-06,0.00275
1917,0.0741,0.0183,8.08e-06,0.0025299999999999997
1918,0.0692,0.0184,7.5500000000000006e-06,0.0023599999999999997
1919,0.06720000000000001,0.0185,7.33e-06,0.0023
1920,0.0892,0.018600000000000002,9.73e-06,0.0030499999999999998
1921,0.095,0.018699999999999998,1.0399999999999999e-05,0.00325
1922,0.137,0.0188,1.49e-05,0.00468
1923,0.149,0.0189,1.63e-05,0.0050999999999999995
1924,0.153,0.019,1.67e-05,0.00523
1925,0.168,0.0192,1.83e-05,0.005730000000000001
1926,0.163,0.0193,1.78e-05,0.00558
1927,0.184,0.0195,2.01e-05,0.0063
1928,0.2,0.019600000000000003,2.19e-05,0.006849999999999999
1929,0.228,0.0198,2.49e-05,0.0078
1930,0.214,0.02,2.33e-05,0.00731
1931,0.189,0.0202,2.06e-05,0.00645
1932,0.173,0.020399999999999998,1.89e-05,0.00591
1933,0.16,0.0206,1.74e-05,0.00546
1934,0.167,0.0208,1.8200000000000002e-05,0.0057
1935,0.174,0.0211,1.9e-05,0.00594
1936,0.172,0.0213,1.88e-05,0.00588
1937,0.194,0.0216,2.11e-05,0.00661
1938,0.184,0.022,2.01e-05,0.0062900000000000005
1939,0.194,0.0224,2.12e-05,0.00663
1940,0.232,0.0229,2.53e-05,0.00792
1941,0.172,0.0235,1.87e-05,0.00587
1942,0.0603,0.024399999999999998,6.56e-06,0.00206
1943,0.000246,0.0256,6.88e-09,2.15e-06
1944,0.00176,0.027,1.72e-07,5.39e-05
1945,0.115,0.0286,1.26e-05,0.00394
1946,0.224,0.0305,2.4500000000000003e-05,0.00767
1947,0.307,0.032600000000000004,3.35e-05,0.0105
1948,0.349,0.0349,3.8100000000000005e-05,0.0119
1949,0.399,0.037399999999999996,4.35e-05,0.0136
1950,0.375,0.040100000000000004,4.09e-05,0.0128
1951,0.355,0.0437,3.87e-05,0.0121
1952,0.357,0.0487,3.89e-05,0.012199999999999999
1953,0.35,0.0549,3.82e-05,0.012
1954,0.42,0.062,4.58e-05,0.0144
1955,0.482,0.0699,5.26e-05,0.0165
1956,0.554,0.07840000000000001,6.05e-05,0.0189
1957,0.597,0.0872,6.52e-05,0.020399999999999998
1958,0.587,0.09609999999999999,6.4e-05,0.0201
1959,0.673,0.105,7.340000000000001e-05,0.023
1960,0.733,0.113,8e-05,0.0251
1961,0.77,0.122,8.41e-05,0.0263
1962,0.787,0.13,8.59e-05,0.0269
1963,0.873,0.139,9.520000000000001e-05,0.0298
1964,0.986,0.147,0.000108,0.0337
1965,1.0,0.156,0.00010899999999999999,0.0342
1966,0.981,0.166,0.000107,0.0335
1967,0.972,0.176,0.000106,0.0332
1968,1.02,0.186,0.000112,0.035
1969,1.05,0.197,0.000114,0.0358
1970,1.37,0.196,0.000135,0.046
1971,1.48,0.215,0.00014399999999999998,0.0464
1972,1.37,0.199,0.000152,0.0464
1973,1.6,0.227,0.00016,0.046299999999999994
1974,1.6,0.238,0.000175,0.046700000000000005
1975,1.69,0.296,0.000183,0.0487
1976,1.74,0.274,0.000194,0.0514
1977,1.67,0.239,0.00020899999999999998,0.052700000000000004
1978,1.86,0.273,0.000224,0.055299999999999995
1979,2.01,0.278,0.000237,0.0637
1980,1.95,0.281,0.000248,0.0603
1981,2.19,0.297,0.000258,0.062
1982,1.97,0.298,0.000266,0.0639
1983,2.16,0.326,0.000273,0.052399999999999995
1984,2.27,0.332,0.000283,0.102
1985,2.32,0.335,0.00029099999999999997,0.11
1986,2.42,0.355,0.000304,0.07909999999999999
1987,2.37,0.351,0.000311,0.0875
1988,2.48,0.352,0.000317,0.06409999999999999
1989,2.45,0.33,0.00032700000000000003,0.107
1990,2.3,0.279,0.000294,0.11
1991,2.38,0.263,0.000287,0.107
1992,1.77,0.21,0.00030199999999999997,0.1
1993,1.53,0.0958,0.00029099999999999997,0.09190000000000001
1994,1.39,0.0629,0.000294,0.0925
1995,0.743,0.118,0.000332,0.103
1996,1.81,0.11,0.000433,0.0992
1997,1.83,0.219,0.000426,0.0906
1998,2.24,0.21,0.000429,0.0885
1999,2.3,0.168,0.00040300000000000004,0.0858
2000,2.4,0.195,0.000415,0.105
2001,2.0,0.233,0.000494,0.0863
2002,2.5,0.247,0.000464,0.08159999999999999
2003,2.38,0.236,0.000443,0.0923
2004,2.37,0.261,0.00047099999999999996,0.0844
2005,2.16,0.25,0.00047099999999999996,0.0616
2006,2.28,0.249,0.00047799999999999996,0.0592
2007,2.23,0.258,0.000555,0.101
2008,2.84,0.239,0.0005480000000000001,0.061
2009,1.88,0.146,0.00055,0.054299999999999994
2010,2.66,0.0583,0.000594,0.052399999999999995
2011,2.71,0.22,0.000597,0.062
2012,2.61,0.185,0.00057,0.0631
2013,2.34,0.146,0.000578,0.0522
2014,2.23,0.128,0.0006,0.0498
2015,2.38,0.125,0.000611,0.0594
2016,2.49,0.156,0.00064,0.0917
2017,2.58,0.17,0.000666,0.094
2018,2.6,0.156,0.000617,0.0859