year,IPC1,IPC2,IPC4,IPCMAG
1850,0.00487,0.000199,0.000149,9.89e-08
1851,0.00513,0.00020899999999999998,0.000157,1.0399999999999999e-07
1852,0.00541,0.000221,0.000166,1.1e-07
1853,0.0057,0.00023300000000000003,0.000175,1.16e-07
1854,0.006019999999999999,0.000246,0.000184,1.22e-07
1855,0.00635,0.000259,0.000194,1.29e-07
1856,0.006690000000000001,0.000273,0.000205,1.36e-07
1857,0.00705,0.00028799999999999995,0.000216,1.43e-07
1858,0.00743,0.000303,0.00022700000000000002,1.5100000000000002e-07
1859,0.007809999999999999,0.000319,0.00023899999999999998,1.5899999999999998e-07
1860,0.00821,0.000335,0.000251,1.67e-07
1861,0.00862,0.000352,0.000264,1.75e-07
1862,0.00906,0.00037,0.000277,1.84e-07
1863,0.00951,0.000388,0.00029099999999999997,1.93e-07
1864,0.009980000000000001,0.00040699999999999997,0.000306,2.03e-07
1865,0.0105,0.000428,0.000321,2.13e-07
1866,0.011,0.000449,0.000337,2.23e-07
1867,0.0115,0.00047099999999999996,0.00035299999999999996,2.34e-07
1868,0.011300000000000001,0.00046,0.000345,2.29e-07
1869,0.0188,0.000766,0.000575,3.81e-07
1870,0.015,0.0006129999999999999,0.00046,3.05e-07
1871,0.03,0.00123,0.00092,6.1e-07
1872,0.0338,0.00138,0.00103,6.86e-07
1873,0.041299999999999996,0.0016899999999999999,0.00126,8.38e-07
1874,0.601,0.0245,0.0184,1.22e-05
1875,1.48,0.060200000000000004,0.045200000000000004,2.99e-05
1876,1.44,0.0587,0.044,2.92e-05
1877,1.32,0.053899999999999997,0.0405,2.68e-05
1878,1.9,0.0777,0.0583,3.86e-05
1879,2.38,0.097,0.0728,4.82e-05
1880,2.41,0.09820000000000001,0.0737,4.88e-05
1881,2.47,0.101,0.07579999999999999,5.02e-05
1882,2.57,0.105,0.07890000000000001,5.23e-05
1883,2.77,0.113,0.0849,5.63e-05
1884,3.03,0.124,0.0928,6.15e-05
1885,3.43,0.14,0.105,6.97e-05
1886,3.69,0.151,0.113,7.489999999999999e-05
1887,4.59,0.187,0.14,9.31e-05
1888,5.3,0.216,0.162,0.000108
1889,6.41,0.262,0.196,0.00013000000000000002
1890,6.92,0.23,0.212,0.00014099999999999998
1891,8.32,0.234,0.255,0.00016900000000000002
1892,8.27,0.24,0.253,0.00016800000000000002
1893,8.78,0.246,0.269,0.000178
1894,11.3,0.253,0.346,0.000229
1895,12.5,0.261,0.384,0.000254
1896,13.2,0.269,0.405,0.00026900000000000003
1897,13.9,0.278,0.425,0.00028199999999999997
1898,17.7,0.287,0.541,0.000359
1899,17.7,0.297,0.542,0.000359
1900,19.9,0.308,0.609,0.000404
1901,23.8,0.319,0.73,0.000484
1902,25.6,0.33,0.783,0.000519
1903,26.4,0.343,0.809,0.000536
1904,29.8,0.357,0.911,0.0006039999999999999
1905,30.7,0.373,0.939,0.000622
1906,33.7,0.389,1.03,0.000683
1907,35.9,0.406,1.1,0.0007289999999999999
1908,38.6,0.424,1.18,0.0007830000000000001
1909,39.2,0.443,1.2,0.000796
1910,40.4,0.463,1.24,0.000819
1911,45.3,0.485,1.39,0.000919
1912,50.5,0.509,1.55,0.00102
1913,55.7,0.535,1.7,0.00113
1914,59.4,0.563,1.82,0.00121
1915,54.1,0.593,1.66,0.0011
1916,60.0,0.626,1.84,0.00122
1917,69.1,0.66,2.12,0.0014
1918,73.3,0.696,2.24,0.00149
1919,81.1,0.735,2.48,0.00165
1920,76.1,0.775,2.33,0.0015400000000000001
1921,68.5,0.819,2.1,0.00139
1922,73.2,0.867,2.24,0.00149
1923,77.8,0.919,2.38,0.00158
1924,81.3,0.975,2.49,0.00165
1925,84.0,1.04,2.57,0.00171
1926,84.6,1.1,2.59,0.00172
1927,91.7,3.57,2.81,0.00186
1928,92.7,3.8,2.84,0.00188
1929,95.0,4.17,2.91,0.0019299999999999999
1930,86.4,3.9,2.65,0.00175
1931,78.0,3.91,2.39,0.00158
1932,78.0,4.12,2.39,0.00158
1933,91.2,4.98,2.79,0.00185
1934,101.0,5.07,3.1,0.00206
1935,106.0,6.05,3.25,0.00215
1936,117.0,6.45,3.57,0.00237
1937,125.0,6.46,3.84,0.0025499999999999997
1938,132.0,6.23,4.05,0.00268
1939,128.0,6.01,3.93,0.0026
1940,155.0,5.49,4.74,0.00314
1941,155.0,6.52,4.76,0.00316
1942,149.0,5.47,4.57,0.0030299999999999997
1943,152.0,5.0,4.67,0.00309
1944,141.0,4.36,4.31,0.00285
1945,77.9,3.05,2.39,0.00158
1946,53.5,2.77,1.64,0.00109
1947,71.1,2.87,2.18,0.0014399999999999999
1948,89.3,3.21,2.73,0.00181
1949,99.2,4.09,3.04,0.0020099999999999996
1950,103.0,4.86,3.15,0.00209
1951,123.0,6.38,3.77,0.0025
1952,130.0,7.12,3.98,0.00264
1953,145.0,8.78,4.44,0.00294
1954,141.0,10.8,4.31,0.00285
1955,140.0,11.6,4.29,0.0028399999999999996
1956,158.0,14.2,4.84,0.00321
1957,185.0,16.7,5.66,0.00375
1958,178.0,17.6,5.45,0.00361
1959,189.0,20.2,5.78,0.00383
1960,227.0,24.8,6.94,0.0046
1961,277.0,27.3,8.49,0.00563
1962,285.0,31.4,8.74,0.00579
1963,318.0,33.7,9.73,0.00645
1964,351.0,37.4,10.7,0.0071200000000000005
1965,379.0,38.8,11.6,0.0077
1966,410.0,44.2,12.6,0.008320000000000001
1967,480.0,49.0,14.7,0.00973
1968,551.0,53.7,16.9,0.0112
1969,643.0,57.6,19.7,0.013099999999999999
1970,758.0,58.6,16.9,0.193
1971,786.0,59.4,16.4,0.191
1972,840.0,65.3,16.0,0.201
1973,897.0,74.1,16.0,0.245
1974,900.0,69.9,15.6,0.194
1975,857.0,61.7,15.4,0.196
1976,895.0,64.6,15.2,0.216
1977,920.0,66.7,14.9,0.213
1978,882.0,74.3,14.7,0.203
1979,933.0,77.1,14.5,0.216
1980,925.0,75.6,14.4,0.606
1981,908.0,71.5,14.3,0.667
1982,880.0,66.5,14.2,0.717
1983,863.0,65.5,14.0,0.733
1984,922.0,65.6,13.8,0.72
1985,900.0,61.4,13.8,0.687
1986,901.0,59.2,13.6,0.704
1987,891.0,59.2,13.4,0.655
1988,973.0,63.7,13.2,0.66
1989,1010.0,65.4,13.0,0.655
1990,1080.0,65.6,13.1,0.609
1991,1090.0,66.9,13.1,0.548
1992,1100.0,66.8,14.2,0.493
1993,1090.0,65.4,13.9,0.524
1994,1140.0,67.1,16.5,0.343
1995,1160.0,67.5,16.7,0.359
1996,1170.0,68.0,17.1,0.35
1997,1160.0,65.4,17.7,0.372
1998,1130.0,59.4,17.7,0.377
1999,1160.0,59.7,17.5,0.37
2000,1190.0,60.2,17.6,0.443
2001,1170.0,58.9,16.4,0.368
2002,1210.0,56.3,15.8,0.408
2003,1220.0,55.4,15.7,0.43
2004,1210.0,55.4,15.2,0.402
2005,1220.0,56.5,14.6,0.411
2006,1200.0,56.8,13.8,0.383
2007,1230.0,56.0,14.0,0.5
2008,1160.0,51.6,15.1,0.44
2009,1100.0,46.1,12.6,0.39
2010,1150.0,47.1,12.8,0.403
2011,1200.0,46.9,12.1,0.415
2012,1250.0,47.0,12.7,0.52
2013,1250.0,48.8,12.7,0.578
2014,1200.0,48.2,12.2,0.551
2015,1160.0,46.8,12.1,0.459
2016,1140.0,46.4,11.6,0.446
2017,1130.0,47.0,11.3,0.486
2018,1080.0,46.4,10.9,0.486