year,IPC1,IPC4
1850,0.00046100000000000004,0.00147
1851,0.000472,0.00147
1852,0.000484,0.00146
1853,0.000497,0.00146
1854,0.00051,0.00146
1855,0.000524,0.00146
1856,0.000539,0.00145
1857,0.000553,0.00145
1858,0.000569,0.00145
1859,0.000584,0.00145
1860,0.0006,0.00145
1861,0.000617,0.00145
1862,0.000634,0.00145
1863,0.000652,0.00145
1864,0.00067,0.00145
1865,0.00069,0.00145
1866,0.0007099999999999999,0.0014399999999999999
1867,0.000731,0.0014399999999999999
1868,0.000753,0.0014399999999999999
1869,0.000775,0.0014399999999999999
1870,0.000799,0.0014399999999999999
1871,0.000824,0.00145
1872,0.000852,0.00145
1873,0.000883,0.00146
1874,0.000915,0.00147
1875,0.000948,0.00148
1876,0.000983,0.00149
1877,0.00102,0.00151
1878,0.0010500000000000002,0.00152
1879,0.00109,0.0015300000000000001
1880,0.00113,0.0015400000000000001
1881,0.00116,0.00155
1882,0.0012,0.00155
1883,0.00124,0.00156
1884,0.00128,0.00157
1885,0.00132,0.00158
1886,0.00136,0.00159
1887,0.0014,0.0016
1888,0.0014399999999999999,0.00161
1889,0.00149,0.0016200000000000001
1890,0.0016,0.0017
1891,0.00165,0.00175
1892,0.0017,0.0018
1893,0.00175,0.00185
1894,0.00181,0.0019
1895,0.0018700000000000001,0.00196
1896,0.0019399999999999999,0.0020099999999999996
1897,0.002,0.00207
1898,0.00207,0.00213
1899,0.00215,0.00219
1900,0.00222,0.00225
1901,0.00231,0.00232
1902,0.0024,0.00239
1903,0.0025099999999999996,0.0024500000000000004
1904,0.00262,0.00252
1905,0.00273,0.0026
1906,0.0028399999999999996,0.00267
1907,0.0029500000000000004,0.00275
1908,0.0030499999999999998,0.00283
1909,0.00314,0.0029
1910,0.00321,0.00298
1911,0.00328,0.00307
1912,0.00335,0.00315
1913,0.0034100000000000003,0.00323
1914,0.00348,0.00332
1915,0.00354,0.0034100000000000003
1916,0.00359,0.0035
1917,0.00364,0.00359
1918,0.00367,0.00369
1919,0.0037,0.00378
1920,0.0037099999999999998,0.0038799999999999998
1921,0.0037099999999999998,0.00398
1922,0.0037,0.00409
1923,0.00369,0.004200000000000001
1924,0.00367,0.00431
1925,0.00364,0.00442
1926,0.00362,0.00453
1927,0.0036,0.0046500000000000005
1928,0.00359,0.00477
1929,0.0035800000000000003,0.004889999999999999
1930,0.0035800000000000003,0.00501
1931,0.0036,0.00513
1932,0.00366,0.00526
1933,0.0037400000000000003,0.00538
1934,0.00385,0.00551
1935,0.0039700000000000004,0.00564
1936,0.00411,0.00577
1937,0.00425,0.005900000000000001
1938,0.00439,0.00604
1939,0.00454,0.00618
1940,0.00468,0.00631
1941,0.0048200000000000005,0.00646
1942,0.00498,0.0066
1943,0.00515,0.00675
1944,0.00534,0.006900000000000001
1945,0.00554,0.0070599999999999994
1946,0.00575,0.00723
1947,0.00597,0.0074
1948,0.0062,0.00758
1949,0.00644,0.00777
1950,0.006690000000000001,0.00797
1951,0.00697,0.00818
1952,0.00732,0.00841
1953,0.007719999999999999,0.00867
1954,0.008150000000000001,0.00894
1955,0.00862,0.00922
1956,0.009089999999999999,0.009519999999999999
1957,0.00956,0.00982
1958,0.01,0.0101
1959,0.0105,0.0104
1960,0.0109,0.0107
1961,0.011300000000000001,0.011
1962,0.011699999999999999,0.0114
1963,0.0121,0.011699999999999999
1964,0.0126,0.012
1965,0.0156,0.0124
1966,0.0166,0.0127
1967,0.0166,0.013
1968,0.018,0.0134
1969,0.019899999999999998,0.013699999999999999
1970,0.0221,0.0147
1971,0.0197,0.0154
1972,0.0247,0.0162
1973,0.0252,0.017
1974,0.0258,0.0178
1975,0.0268,0.0185
1976,0.0289,0.0192
1977,0.0312,0.0198
1978,0.0352,0.020399999999999998
1979,0.0384,0.0211
1980,0.040100000000000004,0.0219
1981,0.0416,0.0229
1982,0.0441,0.023899999999999998
1983,0.0443,0.025
1984,0.0448,0.026199999999999998
1985,0.045700000000000005,0.0275
1986,0.0443,0.0288
1987,0.040799999999999996,0.030199999999999998
1988,0.039299999999999995,0.0315
1989,0.0385,0.032799999999999996
1990,0.0599,0.0338
1991,0.0627,0.0347
1992,0.0605,0.0353
1993,0.0682,0.0358
1994,0.0721,0.0362
1995,0.0721,0.0365
1996,0.0722,0.0368
1997,0.0722,0.0371
1998,0.0761,0.037200000000000004
1999,0.0723,0.037399999999999996
2000,0.085,0.0376
2001,0.0907,0.0366
2002,0.09659999999999999,0.0356
2003,0.0986,0.0345
2004,0.105,0.0335
2005,0.103,0.032600000000000004
2006,0.113,0.033299999999999996
2007,0.123,0.034
2008,0.125,0.0347
2009,0.132,0.0355
2010,0.134,0.0363
2011,0.133,0.0363
2012,0.133,0.0364
2013,0.133,0.0365
2014,0.149,0.0366
2015,0.159,0.0367
2016,0.173,0.0366
2017,0.178,0.0368
2018,0.249,0.037