year,IPC2,IPC4
1850,0.0,1.8e-06
1851,0.0,1.82e-06
1852,0.0,1.8399999999999997e-06
1853,0.0,1.8600000000000002e-06
1854,0.0,1.8800000000000002e-06
1855,0.0,1.9e-06
1856,0.0,1.92e-06
1857,0.0,1.94e-06
1858,0.0,1.96e-06
1859,0.0,1.9699999999999998e-06
1860,0.0,1.99e-06
1861,0.0,2.0100000000000002e-06
1862,0.0,2.03e-06
1863,0.0,2.0399999999999995e-06
1864,0.0,2.06e-06
1865,0.0,2.0800000000000004e-06
1866,0.0,2.1e-06
1867,0.0,2.11e-06
1868,0.0,2.13e-06
1869,0.0,2.15e-06
1870,0.0,2.17e-06
1871,0.0,2.1899999999999998e-06
1872,0.0,2.2e-06
1873,0.0,2.22e-06
1874,0.0,2.2399999999999997e-06
1875,0.0,2.2600000000000004e-06
1876,0.0,2.2799999999999998e-06
1877,0.0,2.31e-06
1878,0.0,2.33e-06
1879,0.0,2.3600000000000003e-06
1880,0.0,2.3899999999999996e-06
1881,0.0,2.4199999999999997e-06
1882,0.0,2.4599999999999997e-06
1883,0.0,2.51e-06
1884,0.0,2.56e-06
1885,0.0,2.6100000000000004e-06
1886,0.0,2.66e-06
1887,0.0,2.72e-06
1888,0.0,2.7699999999999997e-06
1889,0.0,2.83e-06
1890,0.0,2.93e-06
1891,0.0,3.0200000000000003e-06
1892,0.0,3.1100000000000003e-06
1893,0.0,3.21e-06
1894,0.0,3.3e-06
1895,0.0,3.3999999999999996e-06
1896,0.0,3.5100000000000003e-06
1897,0.0,3.6099999999999997e-06
1898,0.0,3.7200000000000004e-06
1899,0.0,3.83e-06
1900,0.0,3.9399999999999995e-06
1901,0.0,4.06e-06
1902,0.0,4.18e-06
1903,0.0,4.3e-06
1904,0.0,4.43e-06
1905,0.0,4.5599999999999995e-06
1906,0.0,4.69e-06
1907,0.0,4.83e-06
1908,0.0,4.970000000000001e-06
1909,0.0,5.11e-06
1910,0.0,5.2500000000000006e-06
1911,0.0,5.4e-06
1912,0.0,5.55e-06
1913,0.0,5.7000000000000005e-06
1914,0.0,5.86e-06
1915,0.0,6.02e-06
1916,0.0,6.18e-06
1917,0.0,6.349999999999999e-06
1918,0.0,6.52e-06
1919,0.0,6.69e-06
1920,0.0,6.87e-06
1921,0.0,7.059999999999999e-06
1922,0.0,7.25e-06
1923,0.0,7.440000000000001e-06
1924,0.0,7.640000000000001e-06
1925,0.0,7.85e-06
1926,0.0,8.059999999999999e-06
1927,0.0,8.269999999999999e-06
1928,0.0,8.48e-06
1929,0.0,8.7e-06
1930,0.0,8.920000000000001e-06
1931,4.23e-10,9.14e-06
1932,1.5999999999999999e-09,9.37e-06
1933,3.41e-09,9.6e-06
1934,5.7e-09,9.839999999999999e-06
1935,8.35e-09,1.01e-05
1936,1.12e-08,1.03e-05
1937,1.42e-08,1.06e-05
1938,1.71e-08,1.08e-05
1939,1.98e-08,1.11e-05
1940,2.23e-08,1.1299999999999999e-05
1941,2.4600000000000002e-08,1.1599999999999999e-05
1942,2.7200000000000002e-08,1.18e-05
1943,2.98e-08,1.2e-05
1944,3.2500000000000006e-08,1.23e-05
1945,3.51e-08,1.25e-05
1946,3.76e-08,1.2800000000000001e-05
1947,3.98e-08,1.3e-05
1948,4.18e-08,1.33e-05
1949,4.34e-08,1.3599999999999999e-05
1950,4.46e-08,1.4e-05
1951,4.5299999999999995e-08,1.43e-05
1952,4.59e-08,1.47e-05
1953,4.64e-08,1.52e-05
1954,4.68e-08,1.57e-05
1955,4.71e-08,1.62e-05
1956,4.7499999999999995e-08,1.67e-05
1957,4.79e-08,1.73e-05
1958,4.8399999999999997e-08,1.78e-05
1959,4.91e-08,1.84e-05
1960,5.01e-08,1.89e-05
1961,5.400000000000001e-08,1.94e-05
1962,6.29e-08,2e-05
1963,7.54e-08,2.05e-05
1964,9.03e-08,2.11e-05
1965,1.06e-07,2.17e-05
1966,1.22e-07,2.22e-05
1967,1.3700000000000002e-07,2.2800000000000002e-05
1968,1.49e-07,2.34e-05
1969,1.57e-07,2.4e-05
1970,1.5100000000000002e-07,2.41e-05
1971,1.44e-07,2.4e-05
1972,1.3700000000000002e-07,2.3800000000000003e-05
1973,1.29e-07,2.34e-05
1974,1.22e-07,2.31e-05
1975,1.1599999999999999e-07,2.2800000000000002e-05
1976,1.1200000000000001e-07,2.2700000000000003e-05
1977,1.0900000000000001e-07,2.2599999999999997e-05
1978,1.0900000000000001e-07,2.2700000000000003e-05
1979,1.05e-07,2.2700000000000003e-05
1980,1.05e-07,2.2700000000000003e-05
1981,1.05e-07,2.2599999999999997e-05
1982,1.04e-07,2.2499999999999998e-05
1983,1.04e-07,2.23e-05
1984,1.04e-07,2.2100000000000002e-05
1985,1.04e-07,2.19e-05
1986,1.04e-07,2.19e-05
1987,1.05e-07,2.18e-05
1988,1.0700000000000002e-07,2.19e-05
1989,1.0900000000000001e-07,2.19e-05
1990,1.0900000000000001e-07,2.19e-05
1991,1.0800000000000001e-07,2.19e-05
1992,1.0900000000000001e-07,2.18e-05
1993,1.1e-07,2.17e-05
1994,1.0900000000000001e-07,2.17e-05
1995,1.0800000000000001e-07,2.17e-05
1996,1.0700000000000002e-07,2.16e-05
1997,1.06e-07,2.17e-05
1998,1.0700000000000002e-07,2.17e-05
1999,1.06e-07,2.18e-05
2000,1.05e-07,2.17e-05
2001,1.02e-07,2.17e-05
2002,9.950000000000001e-08,2.17e-05
2003,9.51e-08,2.17e-05
2004,9.22e-08,2.17e-05
2005,8.93e-08,2.16e-05
2006,8.88e-08,2.16e-05
2007,8.840000000000001e-08,2.1499999999999997e-05
2008,8.809999999999999e-08,2.1499999999999997e-05
2009,8.77e-08,2.14e-05
2010,8.73e-08,2.14e-05
2011,8.240000000000001e-08,2.1499999999999997e-05
2012,8.06e-08,2.14e-05
2013,7.890000000000001e-08,2.14e-05
2014,7.71e-08,2.14e-05
2015,7.53e-08,2.14e-05
2016,7.35e-08,2.14e-05
2017,7.170000000000001e-08,2.14e-05