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
1881,0.0005380000000000001,0.0352,5.09e-07,3.68e-07
1882,0.00127,0.0831,1.2e-06,8.7e-07
1883,0.00217,0.141,2.0500000000000003e-06,1.48e-06
1884,0.00318,0.208,3.01e-06,2.18e-06
1885,0.0043,0.281,4.06e-06,2.94e-06
1886,0.00561,0.366,5.3e-06,3.8400000000000005e-06
1887,0.00721,0.471,6.81e-06,4.93e-06
1888,0.009,0.588,8.51e-06,6.1599999999999995e-06
1889,0.0109,0.714,1.03e-05,7.4799999999999995e-06
1890,0.0129,0.537,1.22e-05,8.82e-06
1891,0.015,0.537,1.4200000000000001e-05,1.03e-05
1892,0.0166,0.537,1.57e-05,1.1400000000000001e-05
1893,0.0295,0.538,2.79e-05,2.02e-05
1894,0.0564,0.538,5.33e-05,3.86e-05
1895,0.0564,0.539,5.33e-05,3.86e-05
1896,0.0628,0.539,5.94e-05,4.2999999999999995e-05
1897,0.0489,0.54,4.62e-05,3.34e-05
1898,0.0741,0.54,7.000000000000001e-05,5.07e-05
1899,0.0865,0.541,8.17e-05,5.92e-05
1900,0.117,0.542,0.000111,8.010000000000001e-05
1901,0.128,0.542,0.000121,8.75e-05
1902,0.12,0.543,0.00011300000000000001,8.19e-05
1903,0.13,0.544,0.000123,8.89e-05
1904,0.139,0.545,0.000131,9.48e-05
1905,0.15,0.547,0.00014199999999999998,0.000103
1906,0.18,0.548,0.00017,0.000123
1907,0.183,0.549,0.00017299999999999998,0.000125
1908,0.197,0.551,0.000186,0.000135
1909,0.202,0.552,0.000191,0.00013900000000000002
1910,0.2,0.554,0.000189,0.00013700000000000002
1911,0.217,0.556,0.000205,0.000148
1912,0.222,0.557,0.00020999999999999998,0.000152
1913,0.611,0.559,0.0005769999999999999,0.00041799999999999997
1914,0.598,0.561,0.000565,0.00040899999999999997
1915,0.566,0.563,0.000535,0.00038700000000000003
1916,0.524,0.565,0.000495,0.000359
1917,0.482,0.568,0.000456,0.00033
1918,0.45,0.57,0.000426,0.000308
1919,0.438,0.573,0.000414,0.000299
1920,0.581,0.576,0.000549,0.000398
1921,0.619,0.579,0.000585,0.000423
1922,0.891,0.582,0.000843,0.00061
1923,0.973,0.586,0.000919,0.000666
1924,0.997,0.59,0.0009429999999999999,0.0006820000000000001
1925,1.09,0.594,0.00103,0.000748
1926,1.06,0.599,0.001,0.000727
1927,1.2,0.603,0.00113,0.0008209999999999999
1928,1.3,0.648,0.00123,0.000893
1929,1.49,0.655,0.00141,0.00102
1930,1.39,0.662,0.00132,0.000953
1931,1.23,0.669,0.00116,0.000842
1932,1.13,0.664,0.00106,0.000771
1933,1.04,0.67,0.000984,0.000712
1934,1.09,0.678,0.00103,0.000743
1935,1.13,0.691,0.00107,0.000775
1936,1.12,0.692,0.00106,0.000767
1937,1.26,0.701,0.0011899999999999999,0.000862
1938,1.2,0.717,0.00113,0.00082
1939,1.26,0.727,0.0011899999999999999,0.000865
1940,1.51,0.709,0.0014299999999999998,0.00103
1941,1.12,0.738,0.00106,0.0007650000000000001
1942,0.392,0.783,0.00037,0.000268
1943,0.00040699999999999997,0.829,3.8499999999999997e-07,2.79e-07
1944,0.010199999999999999,0.858,9.62e-06,6.969999999999999e-06
1945,0.751,0.894,0.000709,0.000514
1946,1.46,0.974,0.00138,0.001
1947,2.0,1.07,0.00189,0.0013700000000000001
1948,2.27,1.14,0.00215,0.00155
1949,2.6,1.22,0.00246,0.0017800000000000001
1950,2.44,1.3,0.00231,0.0016699999999999998
1951,2.31,1.41,0.00218,0.00158
1952,2.32,1.57,0.0022,0.00159
1953,2.28,1.76,0.00215,0.00156
1954,2.73,1.99,0.0025800000000000003,0.0018700000000000001
1955,3.14,2.24,0.00297,0.00215
1956,3.61,2.5,0.0034100000000000003,0.0024700000000000004
1957,3.89,2.8,0.00367,0.00266
1958,3.82,3.07,0.00361,0.00261
1959,4.38,3.36,0.00414,0.003
1960,4.77,3.63,0.00451,0.00327
1961,5.01,3.88,0.00474,0.0034300000000000003
1962,5.12,4.15,0.00484,0.0035099999999999997
1963,5.68,4.43,0.00537,0.0038900000000000002
1964,6.42,4.71,0.00607,0.00439
1965,6.52,5.0,0.0061600000000000005,0.0044599999999999996
1966,6.38,5.3,0.006030000000000001,0.00437
1967,6.32,5.6,0.00597,0.00432
1968,6.65,5.95,0.0062900000000000005,0.00455
1969,6.82,6.29,0.00644,0.00466
1970,8.93,5.46,0.00743,0.00604
1971,9.64,4.9,0.00758,0.00604
1972,8.89,5.01,0.0079,0.00604
1973,10.4,6.04,0.00821,0.00604
1974,10.4,6.1,0.00855,0.0060999999999999995
1975,10.9,3.87,0.0089,0.00637
1976,11.2,4.2,0.00929,0.0067
1977,10.7,4.24,0.009699999999999999,0.00688
1978,11.9,3.65,0.0101,0.0072
1979,12.8,4.57,0.0106,0.008320000000000001
1980,12.4,3.81,0.011,0.00784
1981,13.9,3.6,0.0114,0.00805
1982,12.5,2.18,0.011800000000000001,0.008369999999999999
1983,13.6,1.28,0.0121,0.00688
1984,14.4,2.06,0.0125,0.0134
1985,14.8,2.16,0.0128,0.0143
1986,15.4,2.06,0.013099999999999999,0.0104
1987,15.1,2.3,0.0135,0.0114
1988,15.6,2.6,0.013800000000000002,0.00839
1989,15.5,2.81,0.0141,0.0141
1990,15.6,2.68,0.0144,0.0114
1991,10.4,1.6,0.0147,0.0074199999999999995
1992,10.5,0.456,0.015,0.0172
1993,10.1,0.387,0.0154,0.014199999999999999
1994,10.2,0.379,0.0157,0.0361
1995,10.6,0.377,0.0159,0.0335
1996,11.5,0.355,0.0161,0.0399
1997,10.4,0.429,0.016300000000000002,0.0348
1998,12.4,0.475,0.0166,0.0198
1999,11.5,0.488,0.016800000000000002,0.0173
2000,11.8,0.548,0.0171,0.0148
2001,11.7,0.6,0.0173,0.00777
2002,10.6,0.609,0.0175,0.0104
2003,10.9,0.683,0.0183,0.00631
2004,10.8,0.704,0.018600000000000002,0.00491
2005,10.8,0.874,0.0189,0.00323
2006,10.5,0.895,0.0189,0.0030800000000000003
2007,9.02,1.13,0.0185,0.0026
2008,8.94,1.12,0.019,0.00183
2009,8.24,0.714,0.019100000000000002,0.000587
2010,8.2,0.913,0.019100000000000002,0.00147
2011,8.91,1.18,0.019100000000000002,0.00022
2012,8.62,0.88,0.0192,0.00125
2013,7.47,0.97,0.0192,0.0011
2014,7.17,0.91,0.0192,0.0016899999999999999
2015,6.89,0.811,0.0193,0.00161
2016,6.73,0.856,0.0193,0.00147
2017,7.19,0.902,0.019399999999999997,0.00147
2018,6.72,0.881,0.019399999999999997,0.00147