year,IPC1,IPC2
1850,0.000475,4.76e-09
1851,0.0005,5.010000000000001e-09
1852,0.000527,5.28e-09
1853,0.0005560000000000001,5.57e-09
1854,0.0005859999999999999,5.87e-09
1855,0.000618,6.2e-09
1856,0.000652,6.53e-09
1857,0.000687,6.89e-09
1858,0.0007239999999999999,7.25e-09
1859,0.000761,7.63e-09
1860,0.0008,8.02e-09
1861,0.0008399999999999999,8.42e-09
1862,0.000882,8.84e-09
1863,0.0009270000000000001,9.28e-09
1864,0.000973,9.75e-09
1865,0.00102,1.02e-08
1866,0.00107,1.07e-08
1867,0.0011200000000000001,1.13e-08
1868,0.0011799999999999998,1.18e-08
1869,0.00124,1.24e-08
1870,0.0013,1.2999999999999999e-08
1871,0.00136,1.3600000000000001e-08
1872,0.0014299999999999998,1.43e-08
1873,0.0015,1.5000000000000002e-08
1874,0.00157,1.5699999999999998e-08
1875,0.00165,1.6500000000000002e-08
1876,0.00173,1.73e-08
1877,0.00181,1.8199999999999998e-08
1878,0.0019,1.9e-08
1879,0.00199,1.99e-08
1880,0.00207,2.08e-08
1881,0.00217,2.17e-08
1882,0.00226,2.26e-08
1883,0.0023599999999999997,2.36e-08
1884,0.0024500000000000004,2.4600000000000002e-08
1885,0.00256,2.5599999999999998e-08
1886,0.00266,2.6699999999999998e-08
1887,0.00277,2.78e-08
1888,0.00289,2.89e-08
1889,0.0030099999999999997,3.01e-08
1890,0.00313,3.1399999999999997e-08
1891,0.00326,3.26e-08
1892,0.0033900000000000002,3.4e-08
1893,0.0035299999999999997,3.54e-08
1894,0.00368,3.68e-08
1895,0.00383,3.84e-08
1896,0.0039900000000000005,4e-08
1897,0.00415,4.16e-08
1898,0.00433,4.3300000000000004e-08
1899,0.00451,4.51e-08
1900,0.004690000000000001,4.7e-08
1901,0.00491,4.9200000000000004e-08
1902,0.0051600000000000005,5.1700000000000006e-08
1903,0.00543,5.4400000000000004e-08
1904,0.005719999999999999,5.73e-08
1905,0.00601,6.02e-08
1906,0.0063,6.31e-08
1907,0.00657,6.58e-08
1908,0.0068200000000000005,6.830000000000001e-08
1909,0.007030000000000001,7.05e-08
1910,0.0072,7.21e-08
1911,0.00733,7.35e-08
1912,0.00745,7.47e-08
1913,0.00756,7.57e-08
1914,0.00766,7.669999999999999e-08
1915,0.00775,7.760000000000001e-08
1916,0.00783,7.85e-08
1917,0.00792,7.93e-08
1918,0.008,8.02e-08
1919,0.0081,8.11e-08
1920,0.00819,8.21e-08
1921,0.008289999999999999,8.31e-08
1922,0.00839,8.409999999999999e-08
1923,0.00848,8.500000000000001e-08
1924,0.00858,8.6e-08
1925,0.00868,8.69e-08
1926,0.00878,8.79e-08
1927,0.00888,8.899999999999999e-08
1928,0.009,9.009999999999999e-08
1929,0.00912,9.14e-08
1930,0.00926,9.280000000000001e-08
1931,0.00941,9.43e-08
1932,0.00959,9.6e-08
1933,0.009779999999999999,9.799999999999999e-08
1934,0.00999,1.0000000000000001e-07
1935,0.010199999999999999,1.02e-07
1936,0.0104,1.05e-07
1937,0.0107,1.07e-07
1938,0.0109,1.0900000000000001e-07
1939,0.0112,1.12e-07
1940,0.0114,1.14e-07
1941,0.011699999999999999,1.17e-07
1942,0.0119,1.1900000000000001e-07
1943,0.0121,1.22e-07
1944,0.0124,1.24e-07
1945,0.0126,1.2699999999999999e-07
1946,0.0129,1.29e-07
1947,0.0132,1.3200000000000002e-07
1948,0.0136,1.36e-07
1949,0.013900000000000001,1.39e-07
1950,0.0143,1.44e-07
1951,0.0148,1.48e-07
1952,0.0154,1.55e-07
1953,0.0161,1.62e-07
1954,0.0169,1.69e-07
1955,0.0178,1.7799999999999998e-07
1956,0.018699999999999998,1.87e-07
1957,0.019600000000000003,1.97e-07
1958,0.0206,2.07e-07
1959,0.0216,2.17e-07
1960,0.022699999999999998,2.2699999999999998e-07
1961,0.0237,2.3800000000000001e-07
1962,0.0249,2.5e-07
1963,0.026199999999999998,2.63e-07
1964,0.027600000000000003,2.77e-07
1965,0.028300000000000002,2.84e-07
1966,0.0292,2.92e-07
1967,0.0304,3.04e-07
1968,0.031,3.11e-07
1969,0.032799999999999996,3.29e-07
1970,0.0409,3.2e-07
1971,0.0415,3.2299999999999997e-07
1972,0.0445,3.2499999999999996e-07
1973,0.048100000000000004,3.28e-07
1974,0.0476,3.3e-07
1975,0.0461,3.32e-07
1976,0.046799999999999994,3.3300000000000003e-07
1977,0.0493,3.35e-07
1978,0.0502,3.36e-07
1979,0.0517,3.36e-07
1980,0.0577,3.35e-07
1981,0.058,3.3300000000000003e-07
1982,0.0508,3.29e-07
1983,0.048600000000000004,3.27e-07
1984,0.0516,3.28e-07
1985,0.0484,3.3300000000000003e-07
1986,0.047299999999999995,3.44e-07
1987,0.0495,3.6000000000000005e-07
1988,0.0495,3.79e-07
1989,0.0521,3.9800000000000004e-07
1990,0.0518,4.17e-07
1991,0.0518,4.33e-07
1992,0.0555,4.49e-07
1993,0.06659999999999999,4.63e-07
1994,0.06659999999999999,4.769999999999999e-07
1995,0.06659999999999999,4.9e-07
1996,0.0703,5.03e-07
1997,0.0703,5.15e-07
1998,0.07759999999999999,5.27e-07
1999,0.0813,5.4e-07
2000,0.0887,5.54e-07
2001,0.09609999999999999,5.69e-07
2002,0.09609999999999999,5.85e-07
2003,0.103,6.009999999999999e-07
2004,0.122,6.170000000000001e-07
2005,0.129,6.319999999999999e-07
2006,0.144,6.45e-07
2007,0.151,6.57e-07
2008,0.151,6.68e-07
2009,0.147,6.79e-07
2010,0.151,6.88e-07
2011,0.143,6.98e-07
2012,0.143,7.07e-07
2013,0.136,7.07e-07
2014,0.143,7.159999999999999e-07
2015,0.147,7.240000000000001e-07
2016,0.151,7.31e-07
2017,0.147,7.380000000000001e-07
2018,0.153,7.46e-07