year,IPC1,IPC2
1850,7.46e-05,5.3e-06
1851,7.85e-05,5.58e-06
1852,8.269999999999999e-05,5.88e-06
1853,8.730000000000001e-05,6.2e-06
1854,9.21e-05,6.54e-06
1855,9.71e-05,6.9e-06
1856,0.000102,7.28e-06
1857,0.000108,7.67e-06
1858,0.000114,8.07e-06
1859,0.00011999999999999999,8.49e-06
1860,0.000126,8.930000000000001e-06
1861,0.000132,9.37e-06
1862,0.00013900000000000002,9.849999999999999e-06
1863,0.000146,1.03e-05
1864,0.000153,1.09e-05
1865,0.00016,1.1400000000000001e-05
1866,0.00016800000000000002,1.2e-05
1867,0.000177,1.25e-05
1868,0.000185,1.32e-05
1869,0.000194,1.38e-05
1870,0.000203,1.44e-05
1871,0.000213,1.52e-05
1872,0.000224,1.59e-05
1873,0.000235,1.67e-05
1874,0.000247,1.7500000000000002e-05
1875,0.000259,1.84e-05
1876,0.000272,1.93e-05
1877,0.000285,2.02e-05
1878,0.000298,2.12e-05
1879,0.000312,2.22e-05
1880,0.000326,2.31e-05
1881,0.00034,2.42e-05
1882,0.00035499999999999996,2.52e-05
1883,0.00037,2.63e-05
1884,0.000386,2.7400000000000002e-05
1885,0.000402,2.85e-05
1886,0.00041799999999999997,2.97e-05
1887,0.00043599999999999997,3.09e-05
1888,0.00045400000000000003,3.22e-05
1889,0.000472,3.35e-05
1890,0.000517,3.33e-05
1891,0.000536,3.34e-05
1892,0.0005570000000000001,3.35e-05
1893,0.000579,3.36e-05
1894,0.000603,3.37e-05
1895,0.000628,3.3799999999999995e-05
1896,0.000655,3.4e-05
1897,0.0006820000000000001,3.4099999999999995e-05
1898,0.0007109999999999999,3.43e-05
1899,0.00074,3.44e-05
1900,0.000771,3.46e-05
1901,0.000805,3.48e-05
1902,0.000843,3.5000000000000004e-05
1903,0.000886,3.52e-05
1904,0.00093,3.54e-05
1905,0.000975,3.56e-05
1906,0.00102,3.5799999999999996e-05
1907,0.00106,3.61e-05
1908,0.0011,3.63e-05
1909,0.00114,3.66e-05
1910,0.00117,3.69e-05
1911,0.0011899999999999999,3.73e-05
1912,0.00122,3.76e-05
1913,0.00124,3.8e-05
1914,0.00127,3.85e-05
1915,0.0012900000000000001,3.9e-05
1916,0.00131,3.95e-05
1917,0.00133,4e-05
1918,0.00134,4.06e-05
1919,0.00135,4.12e-05
1920,0.00136,4.19e-05
1921,0.00135,4.25e-05
1922,0.00135,4.3299999999999995e-05
1923,0.00134,4.41e-05
1924,0.00133,4.49e-05
1925,0.00131,4.5900000000000004e-05
1926,0.0013,4.68e-05
1927,0.0012900000000000001,4.79e-05
1928,0.00128,4.9000000000000005e-05
1929,0.00128,5.02e-05
1930,0.00127,5.14e-05
1931,0.00128,5.28e-05
1932,0.0013,5.4399999999999994e-05
1933,0.00133,5.62e-05
1934,0.0013700000000000001,5.82e-05
1935,0.0014199999999999998,6.02e-05
1936,0.00147,6.23e-05
1937,0.00152,6.45e-05
1938,0.00158,6.66e-05
1939,0.00164,6.88e-05
1940,0.0017,7.09e-05
1941,0.00176,7.280000000000001e-05
1942,0.00182,7.46e-05
1943,0.00189,7.630000000000001e-05
1944,0.00196,7.8e-05
1945,0.00204,7.98e-05
1946,0.00212,8.17e-05
1947,0.00221,8.39e-05
1948,0.0023,8.63e-05
1949,0.0024,8.91e-05
1950,0.0025,9.23e-05
1951,0.00261,9.68e-05
1952,0.00272,0.000103
1953,0.00285,0.000111
1954,0.00299,0.00011999999999999999
1955,0.00313,0.00013000000000000002
1956,0.00328,0.00014099999999999998
1957,0.0034300000000000003,0.000152
1958,0.0035800000000000003,0.000162
1959,0.0037400000000000003,0.00017199999999999998
1960,0.00563,0.000182
1961,0.00464,0.000191
1962,0.00696,0.000202
1963,0.0116,0.000213
1964,0.0116,0.000225
1965,0.00696,0.000236
1966,0.00696,0.000246
1967,0.013900000000000001,0.000255
1968,0.0209,0.000262
1969,0.00696,0.00026700000000000004
1970,0.013900000000000001,0.000285
1971,0.018600000000000002,0.00029
1972,0.0162,0.000301
1973,0.0232,0.000311
1974,0.0209,0.000315
1975,0.0209,0.000328
1976,0.0209,0.000307
1977,0.013900000000000001,0.00031
1978,0.013900000000000001,0.00035
1979,0.0162,0.000352
1980,0.018600000000000002,0.000364
1981,0.018600000000000002,0.000373
1982,0.0162,0.000398
1983,0.013900000000000001,0.000389
1984,0.013900000000000001,0.000373
1985,0.013900000000000001,0.000359
1986,0.0116,0.000364
1987,0.013900000000000001,0.000375
1988,0.013900000000000001,0.000393
1989,0.013900000000000001,0.00040100000000000004
1990,0.013900000000000001,0.00041099999999999996
1991,0.014,0.00042699999999999997
1992,0.016300000000000002,0.000432
1993,0.018600000000000002,0.00044
1994,0.018600000000000002,0.000439
1995,0.0188,0.00045200000000000004
1996,0.0213,0.000465
1997,0.0167,0.000475
1998,0.0192,0.00048499999999999997
1999,0.0193,0.000494
2000,0.0195,0.000514
2001,0.0171,0.000521
2002,0.027,0.000522
2003,0.027100000000000003,0.000533
2004,0.0297,0.000553
2005,0.0313,0.000578
2006,0.0628,0.000589
2007,0.0677,0.000598
2008,0.0638,0.000603
2009,0.046799999999999994,0.000622
2010,0.0723,0.000617
2011,0.0723,0.000618
2012,0.0723,0.000619
2013,0.0723,0.0006
2014,0.0813,0.000597
2015,0.0866,0.0005899999999999999
2016,0.09440000000000001,0.000585
2017,0.097,0.0005809999999999999
2018,0.138,0.000579