year,IPC1,IPC2,IPC4,IPCMAG
1850,4.2000000000000004e-05,4.26e-06,0.00707,0.0254
1851,4.22e-05,4.62e-06,0.0071600000000000006,0.0254
1852,4.28e-05,5.03e-06,0.00725,0.0255
1853,4.39e-05,5.49e-06,0.00734,0.0255
1854,4.5400000000000006e-05,6e-06,0.00743,0.0255
1855,4.7300000000000005e-05,6.56e-06,0.00751,0.0255
1856,4.96e-05,7.16e-06,0.0076,0.0255
1857,5.23e-05,7.8e-06,0.007679999999999999,0.0255
1858,5.54e-05,8.49e-06,0.0077599999999999995,0.0255
1859,5.88e-05,9.23e-06,0.00784,0.0256
1860,6.26e-05,1e-05,0.00792,0.0256
1861,6.67e-05,1.08e-05,0.00799,0.0256
1862,7.12e-05,1.17e-05,0.008060000000000001,0.0256
1863,7.6e-05,1.26e-05,0.008119999999999999,0.0257
1864,8.11e-05,1.35e-05,0.00819,0.0257
1865,8.659999999999999e-05,1.44e-05,0.00825,0.0257
1866,9.23e-05,1.54e-05,0.008320000000000001,0.0258
1867,9.83e-05,1.65e-05,0.00838,0.0258
1868,0.00010499999999999999,1.7500000000000002e-05,0.00845,0.0259
1869,0.000111,1.8599999999999998e-05,0.00853,0.0259
1870,0.000118,1.9699999999999998e-05,0.00861,0.026
1871,0.000125,2.09e-05,0.0087,0.026
1872,0.000132,2.2100000000000002e-05,0.0088,0.0261
1873,0.00014000000000000001,2.33e-05,0.00891,0.0261
1874,0.000148,2.4500000000000003e-05,0.00902,0.026199999999999998
1875,0.000156,2.57e-05,0.00914,0.026199999999999998
1876,0.000164,2.7e-05,0.00926,0.0263
1877,0.00017199999999999998,2.83e-05,0.00939,0.0263
1878,0.00018099999999999998,2.96e-05,0.00951,0.0264
1879,0.000189,3.09e-05,0.009640000000000001,0.0265
1880,0.00019800000000000002,3.23e-05,0.00976,0.0265
1881,0.000207,3.36e-05,0.009880000000000002,0.026600000000000002
1882,0.000216,3.5000000000000004e-05,0.01,0.026699999999999998
1883,0.00022600000000000002,3.6400000000000004e-05,0.0101,0.026699999999999998
1884,0.000235,3.78e-05,0.0103,0.0268
1885,0.000245,3.92e-05,0.0104,0.0269
1886,0.000254,4.07e-05,0.0105,0.027
1887,0.000264,4.21e-05,0.0106,0.027
1888,0.00027400000000000005,4.35e-05,0.0108,0.027100000000000003
1889,0.000283,4.4999999999999996e-05,0.0109,0.0272
1890,0.000322,6.99e-05,0.0111,0.026600000000000002
1891,0.000381,7.489999999999999e-05,0.011300000000000001,0.0272
1892,0.000439,8.1e-05,0.0115,0.0277
1893,0.000496,8.82e-05,0.011699999999999999,0.028300000000000002
1894,0.0005520000000000001,9.62e-05,0.011800000000000001,0.0288
1895,0.000607,0.00010499999999999999,0.012,0.0293
1896,0.00066,0.000115,0.012199999999999999,0.0297
1897,0.000712,0.000125,0.0124,0.03
1898,0.000763,0.000136,0.0126,0.0303
1899,0.000812,0.000147,0.0128,0.0304
1900,0.00086,0.00015900000000000002,0.013,0.0305
1901,0.00091,0.00017299999999999998,0.0132,0.0305
1902,0.000964,0.00019,0.0134,0.0305
1903,0.00102,0.00020899999999999998,0.0136,0.0305
1904,0.00108,0.000229,0.013800000000000002,0.0305
1905,0.00113,0.00025,0.014,0.0304
1906,0.0011799999999999998,0.000272,0.0143,0.0304
1907,0.00122,0.000292,0.0145,0.0304
1908,0.00125,0.00031,0.0147,0.0304
1909,0.00127,0.000325,0.0149,0.0304
1910,0.00128,0.00033800000000000003,0.015099999999999999,0.0304
1911,0.00125,0.000347,0.0154,0.0308
1912,0.0011899999999999999,0.00035499999999999996,0.0156,0.0318
1913,0.00108,0.00036199999999999996,0.0158,0.033299999999999996
1914,0.000959,0.00036899999999999997,0.016,0.0352
1915,0.000824,0.000375,0.0162,0.037200000000000004
1916,0.0006889999999999999,0.00038,0.016399999999999998,0.0394
1917,0.000565,0.000386,0.0167,0.0414
1918,0.00046300000000000003,0.000393,0.0169,0.0432
1919,0.00039400000000000004,0.0004,0.0172,0.044700000000000004
1920,0.00036899999999999997,0.000408,0.0175,0.045700000000000005
1921,0.000398,0.00041799999999999997,0.0178,0.046299999999999994
1922,0.00047999999999999996,0.00042699999999999997,0.0182,0.0469
1923,0.000608,0.000437,0.018600000000000002,0.0475
1924,0.000777,0.000448,0.019,0.048100000000000004
1925,0.00098,0.00045900000000000004,0.019399999999999997,0.0485
1926,0.00121,0.00047099999999999996,0.019899999999999998,0.049
1927,0.00146,0.000484,0.0205,0.0493
1928,0.00173,0.000498,0.0211,0.0496
1929,0.002,0.000514,0.0219,0.0498
1930,0.00228,0.00053,0.022600000000000002,0.0498
1931,0.00261,0.000549,0.0238,0.0497
1932,0.00304,0.0005729999999999999,0.0255,0.0492
1933,0.0035499999999999998,0.0006,0.0277,0.0485
1934,0.00411,0.000629,0.030100000000000002,0.0476
1935,0.004690000000000001,0.000661,0.032799999999999996,0.046700000000000005
1936,0.00529,0.0006929999999999999,0.0355,0.0458
1937,0.005860000000000001,0.000725,0.038200000000000005,0.045
1938,0.00639,0.000756,0.040799999999999996,0.0443
1939,0.006860000000000001,0.000786,0.043,0.0438
1940,0.00724,0.0008139999999999999,0.044899999999999995,0.0436
1941,0.00754,0.000838,0.0464,0.0437
1942,0.0077800000000000005,0.00086,0.047700000000000006,0.044
1943,0.00799,0.00088,0.049,0.0445
1944,0.00818,0.0008990000000000001,0.0501,0.0451
1945,0.008369999999999999,0.000919,0.0512,0.045899999999999996
1946,0.00856,0.000939,0.0523,0.046700000000000005
1947,0.00877,0.000962,0.053399999999999996,0.0476
1948,0.00902,0.000988,0.054700000000000006,0.048600000000000004
1949,0.00932,0.00102,0.056100000000000004,0.0495
1950,0.009689999999999999,0.0010500000000000002,0.0577,0.0505
1951,0.010199999999999999,0.0011,0.0595,0.0516
1952,0.011,0.00116,0.061700000000000005,0.053
1953,0.012,0.00124,0.06409999999999999,0.0545
1954,0.0132,0.00133,0.06659999999999999,0.0562
1955,0.0145,0.0014299999999999998,0.0694,0.058
1956,0.0159,0.0015300000000000001,0.0722,0.0598
1957,0.0173,0.00163,0.075,0.0616
1958,0.018699999999999998,0.00174,0.07790000000000001,0.0634
1959,0.0201,0.00184,0.08070000000000001,0.06520000000000001
1960,0.0213,0.0019399999999999999,0.0834,0.06670000000000001
1961,0.0224,0.00204,0.086,0.0644
1962,0.0233,0.00213,0.0887,0.0686
1963,0.024,0.0022299999999999998,0.0915,0.0718
1964,0.0248,0.00233,0.0943,0.0699
1965,0.0256,0.0024300000000000003,0.097,0.0705
1966,0.0265,0.0025299999999999997,0.0998,0.07440000000000001
1967,0.0277,0.00264,0.103,0.07709999999999999
1968,0.0293,0.00275,0.105,0.0772
1969,0.0313,0.00285,0.108,0.0765
1970,0.034,0.00269,0.104,0.07540000000000001
1971,0.0367,0.00246,0.112,0.0783
1972,0.039200000000000006,0.00259,0.113,0.08020000000000001
1973,0.0421,0.00226,0.114,0.08109999999999999
1974,0.045,0.00186,0.115,0.0828
1975,0.0466,0.00195,0.116,0.0847
1976,0.0471,0.0016899999999999999,0.117,0.085
1977,0.045899999999999996,0.00125,0.119,0.0846
1978,0.0426,0.00109,0.119,0.0861
1979,0.0391,0.00121,0.121,0.0871
1980,0.0357,0.000844,0.122,0.0878
1981,0.033,0.000852,0.123,0.0877
1982,0.032,0.000611,0.124,0.0883
1983,0.0324,0.000412,0.125,0.0891
1984,0.0329,0.00057,0.126,0.0906
1985,0.0334,0.0005340000000000001,0.128,0.091
1986,0.0337,0.000475,0.129,0.0906
1987,0.033600000000000005,0.000472,0.13,0.0912
1988,0.132,0.00047799999999999996,0.131,0.089
1989,0.132,0.00046800000000000005,0.132,0.0896
1990,0.14,0.00044500000000000003,0.132,0.0888
1991,0.132,0.000356,0.13,0.087
1992,0.121,0.000296,0.08990000000000001,0.0755
1993,0.118,0.000216,0.0745,0.0683
1994,0.112,7.489999999999999e-05,0.0716,0.0665
1995,0.111,4.39e-05,0.0719,0.0674
1996,0.111,6.71e-05,0.0732,0.069
1997,0.09129999999999999,6.7e-05,0.0686,0.0697
1998,0.09079999999999999,6.2e-05,0.0638,0.0707
1999,0.0891,3.51e-05,0.0594,0.07479999999999999
2000,0.114,2.87e-05,0.054799999999999995,0.074
2001,0.07429999999999999,2.81e-05,0.054,0.078
2002,0.0724,2.8e-05,0.054,0.0788
2003,0.0853,2.8e-05,0.054,0.08170000000000001
2004,0.07540000000000001,0.000116,0.054,0.0825
2005,0.0579,0.000136,0.0541,0.0834
2006,0.119,0.000135,0.0482,0.0795
2007,0.12,0.00013800000000000002,0.0487,0.0711
2008,0.103,0.00013800000000000002,0.0489,0.06720000000000001
2009,0.07,0.000125,0.0493,0.06720000000000001
2010,0.0787,0.000225,0.0535,0.0633
2011,0.101,0.00026700000000000004,0.054299999999999994,0.0626
2012,0.114,0.000287,0.055,0.06609999999999999
2013,0.0983,0.000279,0.055200000000000006,0.0675
2014,0.0975,0.00028199999999999997,0.0546,0.0697
2015,0.0974,0.000232,0.054,0.0584
2016,0.106,0.000319,0.0535,0.0586
2017,0.108,0.00033800000000000003,0.0536,0.0569
2018,0.11,0.000358,0.053700000000000005,0.054