year,IPC1,IPC2
1850,9.91e-05,5.47e-05
1851,0.000104,5.76e-05
1852,0.00011,6.07e-05
1853,0.000116,6.4e-05
1854,0.000122,6.759999999999999e-05
1855,0.000129,7.13e-05
1856,0.000136,7.52e-05
1857,0.00014299999999999998,7.92e-05
1858,0.00015099999999999998,8.340000000000001e-05
1859,0.00015900000000000002,8.77e-05
1860,0.00016700000000000002,9.22e-05
1861,0.000175,9.68e-05
1862,0.000184,0.000102
1863,0.000193,0.000107
1864,0.000203,0.000112
1865,0.000213,0.000118
1866,0.000224,0.000123
1867,0.000235,0.00013000000000000002
1868,0.000246,0.000136
1869,0.000258,0.00014199999999999998
1870,0.00027,0.000149
1871,0.000283,0.000156
1872,0.000297,0.000164
1873,0.000312,0.00017199999999999998
1874,0.000328,0.00018099999999999998
1875,0.00034399999999999996,0.00019
1876,0.000361,0.000199
1877,0.000378,0.00020899999999999998
1878,0.00039600000000000003,0.000219
1879,0.000415,0.000229
1880,0.000433,0.00023899999999999998
1881,0.00045200000000000004,0.00025
1882,0.000472,0.00026000000000000003
1883,0.000492,0.00027100000000000003
1884,0.000512,0.000283
1885,0.0005340000000000001,0.00029499999999999996
1886,0.0005560000000000001,0.000307
1887,0.000579,0.00032
1888,0.000603,0.000333
1889,0.000628,0.00034599999999999995
1890,0.0006879999999999999,0.00034399999999999996
1891,0.000713,0.000345
1892,0.00074,0.00034599999999999995
1893,0.0007700000000000001,0.000347
1894,0.0008020000000000001,0.000348
1895,0.0008349999999999999,0.00035
1896,0.00087,0.00035099999999999997
1897,0.000906,0.00035299999999999996
1898,0.000944,0.000354
1899,0.000984,0.000356
1900,0.00102,0.000358
1901,0.00107,0.000359
1902,0.0011200000000000001,0.000361
1903,0.0011799999999999998,0.000363
1904,0.00124,0.000365
1905,0.0013,0.000368
1906,0.00136,0.00037
1907,0.00141,0.000373
1908,0.00147,0.000375
1909,0.00151,0.000378
1910,0.00155,0.000381
1911,0.00159,0.00038500000000000003
1912,0.0016200000000000001,0.000389
1913,0.00165,0.000393
1914,0.0016899999999999999,0.000398
1915,0.00172,0.00040300000000000004
1916,0.00175,0.000408
1917,0.00177,0.000414
1918,0.0017900000000000001,0.00041999999999999996
1919,0.0018,0.000426
1920,0.0018,0.000432
1921,0.0018,0.000439
1922,0.0017900000000000001,0.000447
1923,0.0017800000000000001,0.000455
1924,0.00176,0.000464
1925,0.00175,0.000474
1926,0.00173,0.000484
1927,0.00172,0.000495
1928,0.0017,0.000506
1929,0.0016899999999999999,0.000518
1930,0.0016899999999999999,0.000531
1931,0.0017,0.000546
1932,0.00173,0.0005620000000000001
1933,0.00177,0.0005809999999999999
1934,0.00182,0.000601
1935,0.00188,0.000622
1936,0.00195,0.000644
1937,0.0020299999999999997,0.000666
1938,0.0021000000000000003,0.0006879999999999999
1939,0.00218,0.0007109999999999999
1940,0.00226,0.000732
1941,0.00233,0.000752
1942,0.00242,0.000771
1943,0.0025099999999999996,0.0007880000000000001
1944,0.00261,0.0008060000000000001
1945,0.00271,0.000824
1946,0.00282,0.000844
1947,0.00294,0.000866
1948,0.0030600000000000002,0.000891
1949,0.00319,0.00092
1950,0.00332,0.000953
1951,0.00346,0.001
1952,0.00362,0.00107
1953,0.00379,0.00115
1954,0.0039700000000000004,0.00124
1955,0.00385,0.00135
1956,0.00385,0.00145
1957,0.00513,0.00157
1958,0.00513,0.0016699999999999998
1959,0.00513,0.0017800000000000001
1960,0.00513,0.00188
1961,0.0181,0.00198
1962,0.0183,0.00209
1963,0.019899999999999998,0.0022
1964,0.0217,0.00232
1965,0.0247,0.00244
1966,0.0252,0.0025499999999999997
1967,0.0282,0.00264
1968,0.0299,0.00271
1969,0.0493,0.00276
1970,0.0507,0.0029100000000000003
1971,0.061,0.0029100000000000003
1972,0.0635,0.0029100000000000003
1973,0.0648,0.0029100000000000003
1974,0.0712,0.0029100000000000003
1975,0.0712,0.0029100000000000003
1976,0.043,0.0029100000000000003
1977,0.0674,0.0029100000000000003
1978,0.0417,0.0029100000000000003
1979,0.0469,0.0029100000000000003
1980,0.0584,0.0029100000000000003
1981,0.0585,0.00296
1982,0.0584,0.0029300000000000003
1983,0.0586,0.0030499999999999998
1984,0.0589,0.00337
1985,0.0595,0.00273
1986,0.0598,0.00297
1987,0.0599,0.00312
1988,0.0675,0.00298
1989,0.083,0.00311
1990,0.0856,0.00315
1991,0.0856,0.00312
1992,0.0853,0.0028599999999999997
1993,0.0854,0.00292
1994,0.087,0.00437
1995,0.0963,0.0039900000000000005
1996,0.106,0.00409
1997,0.117,0.0048200000000000005
1998,0.126,0.0039
1999,0.14,0.00433
2000,0.153,0.00429
2001,0.189,0.0037099999999999998
2002,0.223,0.00185
2003,0.26,0.0023
2004,0.296,0.00239
2005,0.334,0.00281
2006,0.338,0.0030099999999999997
2007,0.333,0.00242
2008,0.324,0.0021000000000000003
2009,0.315,0.00294
2010,0.324,0.0024
2011,0.324,0.00216
2012,0.324,0.00227
2013,0.328,0.00113
2014,0.332,0.00109
2015,0.354,0.0010500000000000002
2016,0.386,0.00078
2017,0.397,0.000587
2018,0.563,0.000449