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
1881,0.00041799999999999997,0.004030000000000001,1.0000000000000001e-07,9.41e-07
1882,0.000987,0.009529999999999999,2.36e-07,2.2200000000000003e-06
1883,0.0016799999999999999,0.0162,4.02e-07,3.78e-06
1884,0.0024700000000000004,0.023899999999999998,5.92e-07,5.56e-06
1885,0.0033399999999999997,0.0322,7.98e-07,7.499999999999999e-06
1886,0.00436,0.042,1.04e-06,9.8e-06
1887,0.0055899999999999995,0.054,1.34e-06,1.26e-05
1888,0.0069900000000000006,0.0675,1.67e-06,1.57e-05
1889,0.00848,0.0818,2.03e-06,1.91e-05
1890,0.009,0.0616,2.39e-06,2.2499999999999998e-05
1891,0.0103,0.0616,2.79e-06,2.63e-05
1892,0.0114,0.0616,3.09e-06,2.91e-05
1893,0.019,0.0616,5.49e-06,5.16e-05
1894,0.0345,0.061700000000000005,1.0500000000000001e-05,9.850000000000001e-05
1895,0.035,0.061799999999999994,1.0500000000000001e-05,9.850000000000001e-05
1896,0.039299999999999995,0.061799999999999994,1.17e-05,0.00011
1897,0.032100000000000004,0.0619,9.08e-06,8.54e-05
1898,0.0471,0.062,1.38e-05,0.000129
1899,0.0549,0.062,1.61e-05,0.00015099999999999998
1900,0.073,0.0621,2.18e-05,0.000205
1901,0.08070000000000001,0.062200000000000005,2.37e-05,0.000223
1902,0.0788,0.062299999999999994,2.23e-05,0.00020899999999999998
1903,0.0881,0.0624,2.41e-05,0.00022700000000000002
1904,0.097,0.0625,2.57e-05,0.000242
1905,0.108,0.0627,2.79e-05,0.000263
1906,0.129,0.0628,3.34e-05,0.000314
1907,0.134,0.063,3.4e-05,0.00032
1908,0.145,0.0632,3.66e-05,0.00034399999999999996
1909,0.15,0.0633,3.76e-05,0.000354
1910,0.15,0.0635,3.7199999999999996e-05,0.00035
1911,0.159,0.0637,4.0300000000000004e-05,0.000379
1912,0.161,0.0639,4.13e-05,0.000388
1913,0.378,0.06409999999999999,0.00011300000000000001,0.00107
1914,0.368,0.0643,0.000111,0.0010400000000000001
1915,0.348,0.06459999999999999,0.00010499999999999999,0.000988
1916,0.323,0.0648,9.74e-05,0.000916
1917,0.297,0.06509999999999999,8.97e-05,0.000843
1918,0.278,0.0654,8.37e-05,0.000787
1919,0.269,0.06570000000000001,8.13e-05,0.0007650000000000001
1920,0.35,0.066,0.000108,0.00102
1921,0.372,0.0664,0.000115,0.00108
1922,0.56,0.0668,0.000176,0.00165
1923,0.611,0.06720000000000001,0.00019,0.0017900000000000001
1924,0.633,0.0676,0.000195,0.00184
1925,0.705,0.0681,0.000217,0.00204
1926,0.701,0.0686,0.000213,0.002
1927,0.794,0.0692,0.000241,0.00226
1928,0.864,0.168,0.000262,0.00246
1929,0.976,0.172,0.000297,0.00279
1930,0.946,0.176,0.000287,0.0027
1931,0.816,0.18,0.000244,0.00229
1932,0.776,0.153,0.00023,0.00216
1933,0.722,0.152,0.000212,0.00199
1934,0.744,0.155,0.000219,0.00206
1935,0.767,0.17,0.00022700000000000002,0.00213
1936,0.777,0.154,0.00023,0.00216
1937,0.85,0.152,0.000254,0.00239
1938,0.757,0.165,0.000223,0.0021000000000000003
1939,0.793,0.16,0.000235,0.00221
1940,0.932,0.164,0.00028100000000000005,0.00264
1941,0.711,0.169,0.000208,0.00196
1942,0.301,0.175,7.3e-05,0.0006860000000000001
1943,0.08009999999999999,0.182,2.37e-07,2.2300000000000002e-06
1944,0.096,0.149,5.94e-06,5.58e-05
1945,0.508,0.118,0.00014299999999999998,0.00134
1946,0.908,0.18,0.000275,0.0025800000000000003
1947,1.22,0.266,0.000377,0.0035499999999999998
1948,1.37,0.269,0.000428,0.004019999999999999
1949,1.56,0.289,0.000492,0.00463
1950,1.66,0.291,0.000523,0.00492
1951,1.57,0.297,0.000496,0.00466
1952,1.54,0.333,0.000482,0.00453
1953,1.62,0.35,0.000505,0.00475
1954,1.91,0.389,0.000597,0.00562
1955,2.16,0.439,0.0006770000000000001,0.00636
1956,2.48,0.467,0.000777,0.0073
1957,2.71,0.551,0.000847,0.00796
1958,2.7,0.581,0.000841,0.00791
1959,3.11,0.643,0.0009699999999999999,0.00912
1960,3.43,0.694,0.00107,0.0101
1961,3.59,0.716,0.0011200000000000001,0.0106
1962,3.72,0.768,0.00117,0.011
1963,4.15,0.838,0.00131,0.0123
1964,4.75,0.893,0.0015,0.0141
1965,5.08,0.933,0.00161,0.0152
1966,5.21,0.982,0.00165,0.0155
1967,5.62,1.03,0.0017900000000000001,0.016800000000000002
1968,6.2,1.12,0.00198,0.018600000000000002
1969,6.57,1.18,0.0021000000000000003,0.0197
1970,8.72,1.18,0.002,0.023100000000000002
1971,9.2,1.16,0.002,0.023
1972,8.46,1.27,0.002,0.0229
1973,11.1,1.4,0.002,0.0228
1974,11.0,1.42,0.002,0.0229
1975,11.3,1.28,0.002,0.0238
1976,12.0,1.36,0.002,0.0251
1977,11.7,1.37,0.002,0.0257
1978,13.7,1.38,0.002,0.0268
1979,15.1,1.48,0.002,0.030899999999999997
1980,15.0,1.42,0.002,0.0291
1981,14.3,1.42,0.002,0.0299
1982,13.4,1.28,0.002,0.031
1983,14.6,1.19,0.002,0.0256
1984,14.6,1.23,0.002,0.0497
1985,14.6,1.18,0.002,0.053
1986,15.5,1.08,0.002,0.0531
1987,15.0,1.07,0.002,0.0546
1988,14.6,1.2,0.002,0.0538
1989,14.6,1.15,0.002,0.0525
1990,13.9,1.13,0.002,0.052700000000000004
1991,13.1,0.894,0.002,0.0517
1992,13.0,0.899,0.002,0.0567
1993,13.5,0.703,0.002,0.055
1994,13.7,0.876,0.00116,0.055200000000000006
1995,14.3,0.878,0.000656,0.0409
1996,15.0,0.881,0.0009519999999999999,0.033600000000000005
1997,15.3,0.912,0.000245,0.0265
1998,15.0,0.886,0.000883,0.029
1999,14.4,0.903,0.0025499999999999997,0.0303
2000,14.5,0.923,0.00312,0.029
2001,15.4,0.968,0.003,0.0286
2002,15.5,0.956,0.0024500000000000004,0.027800000000000002
2003,15.3,1.0,0.0035499999999999998,0.0289
2004,15.6,1.03,0.0033900000000000002,0.0245
2005,15.8,1.07,0.00328,0.0252
2006,16.0,1.1,0.0039900000000000005,0.025
2007,16.1,1.12,0.00491,0.023
2008,17.1,1.05,0.00517,0.019600000000000003
2009,15.6,0.708,0.00639,0.0263
2010,15.7,0.694,0.00715,0.024
2011,15.7,0.672,0.00721,0.0205
2012,15.1,0.668,0.00751,0.0233
2013,14.4,0.737,0.017,0.0222
2014,12.7,0.771,0.0202,0.0205
2015,12.8,0.73,0.0273,0.0195
2016,13.7,0.717,0.0235,0.02
2017,13.4,0.797,0.027399999999999997,0.018600000000000002
2018,13.6,0.833,0.0206,0.0221