year,IPC1,IPC2
1850,0.000448,4.139999999999999e-06
1851,0.000472,4.36e-06
1852,0.000497,4.6e-06
1853,0.000524,4.85e-06
1854,0.000553,5.11e-06
1855,0.000584,5.39e-06
1856,0.000615,5.69e-06
1857,0.000648,6e-06
1858,0.000683,6.31e-06
1859,0.000718,6.64e-06
1860,0.000755,6.98e-06
1861,0.0007930000000000001,7.33e-06
1862,0.000833,7.7e-06
1863,0.000874,8.08e-06
1864,0.0009180000000000001,8.49e-06
1865,0.000963,8.91e-06
1866,0.00101,9.35e-06
1867,0.00106,9.81e-06
1868,0.00111,1.03e-05
1869,0.00117,1.08e-05
1870,0.00122,1.1299999999999999e-05
1871,0.00128,1.18e-05
1872,0.00134,1.24e-05
1873,0.00141,1.31e-05
1874,0.00148,1.3700000000000001e-05
1875,0.00156,1.44e-05
1876,0.00163,1.5100000000000001e-05
1877,0.00171,1.58e-05
1878,0.0017900000000000001,1.66e-05
1879,0.0018700000000000001,1.73e-05
1880,0.00196,1.8100000000000003e-05
1881,0.00204,1.89e-05
1882,0.00213,1.9699999999999998e-05
1883,0.00222,2.05e-05
1884,0.00232,2.14e-05
1885,0.0024100000000000002,2.23e-05
1886,0.0025099999999999996,2.3199999999999998e-05
1887,0.00262,2.42e-05
1888,0.00272,2.52e-05
1889,0.0028399999999999996,2.62e-05
1890,0.0031,2.58e-05
1891,0.00321,2.58e-05
1892,0.00333,2.58e-05
1893,0.00346,2.58e-05
1894,0.0036,2.58e-05
1895,0.00375,2.58e-05
1896,0.00391,2.58e-05
1897,0.004070000000000001,2.58e-05
1898,0.00424,2.58e-05
1899,0.00441,2.58e-05
1900,0.0045899999999999995,2.58e-05
1901,0.00479,2.58e-05
1902,0.00501,2.58e-05
1903,0.00526,2.58e-05
1904,0.00552,2.58e-05
1905,0.00579,2.59e-05
1906,0.00605,2.59e-05
1907,0.0063,2.59e-05
1908,0.00653,2.59e-05
1909,0.006730000000000001,2.6e-05
1910,0.006889999999999999,2.6e-05
1911,0.007030000000000001,2.66e-05
1912,0.00714,2.83e-05
1913,0.00725,3.09e-05
1914,0.00735,3.43e-05
1915,0.00744,3.84e-05
1916,0.00753,4.2999999999999995e-05
1917,0.00762,4.8e-05
1918,0.00771,5.32e-05
1919,0.00782,5.8500000000000006e-05
1920,0.00793,6.379999999999999e-05
1921,0.00805,6.93e-05
1922,0.00816,7.549999999999999e-05
1923,0.00828,8.23e-05
1924,0.008400000000000001,8.97e-05
1925,0.00853,9.769999999999999e-05
1926,0.00867,0.000106
1927,0.00882,0.000116
1928,0.00899,0.000125
1929,0.009179999999999999,0.000136
1930,0.00939,0.000146
1931,0.00967,0.000158
1932,0.01,0.00016900000000000002
1933,0.0105,0.000182
1934,0.011,0.000195
1935,0.0115,0.00020999999999999998
1936,0.0121,0.00022600000000000002
1937,0.0127,0.000244
1938,0.013300000000000001,0.000265
1939,0.014,0.000287
1940,0.0146,0.000312
1941,0.0152,0.00034599999999999995
1942,0.0158,0.000391
1943,0.0165,0.000447
1944,0.0171,0.0005110000000000001
1945,0.0178,0.000583
1946,0.018600000000000002,0.0006590000000000001
1947,0.019399999999999997,0.00074
1948,0.0202,0.0008219999999999999
1949,0.0211,0.000905
1950,0.0221,0.000987
1951,0.0232,0.00107
1952,0.0247,0.00115
1953,0.0263,0.00124
1954,0.028,0.00132
1955,0.0298,0.0014199999999999998
1956,0.0315,0.00152
1957,0.0332,0.0016200000000000001
1958,0.0347,0.00173
1959,0.036,0.00185
1960,0.037,0.00198
1961,0.0378,0.00211
1962,0.038700000000000005,0.00225
1963,0.0394,0.0024
1964,0.0402,0.00256
1965,0.0418,0.00273
1966,0.073,0.00292
1967,0.08209999999999999,0.00313
1968,0.095,0.00337
1969,0.102,0.00362
1970,0.118,0.00348
1971,0.128,0.00354
1972,0.128,0.00367
1973,0.141,0.00375
1974,0.138,0.0038399999999999997
1975,0.166,0.0038399999999999997
1976,0.273,0.00375
1977,0.33,0.00385
1978,0.377,0.00382
1979,0.407,0.004
1980,0.422,0.004059999999999999
1981,0.548,0.00415
1982,0.564,0.00436
1983,0.514,0.00438
1984,0.529,0.00443
1985,0.612,0.00451
1986,0.685,0.00463
1987,0.698,0.00518
1988,0.783,0.004860000000000001
1989,0.865,0.00524
1990,1.47,0.00522
1991,1.53,0.00542
1992,1.59,0.00535
1993,1.64,0.00539
1994,1.68,0.00544
1995,1.71,0.0055
1996,1.74,0.00555
1997,1.77,0.0055899999999999995
1998,1.8,0.00534
1999,1.83,0.0054
2000,1.85,0.00552
2001,1.88,0.00549
2002,1.9,0.00549
2003,1.93,0.0056
2004,1.98,0.00554
2005,2.01,0.00549
2006,2.04,0.00545
2007,2.08,0.00566
2008,2.13,0.00551
2009,2.22,0.00546
2010,2.28,0.00595
2011,2.33,0.00547
2012,2.4,0.0054800000000000005
2013,2.44,0.00607
2014,2.47,0.006
2015,2.54,0.00595
2016,2.58,0.00595
2017,2.75,0.00595
2018,2.7,0.00596