year,IPC1,IPC4
1850,1.01e-08,1.87e-05
1851,1.02e-08,1.89e-05
1852,1.02e-08,1.92e-05
1853,1.03e-08,1.94e-05
1854,1.05e-08,1.96e-05
1855,1.07e-08,1.9900000000000003e-05
1856,1.09e-08,2.01e-05
1857,1.12e-08,2.03e-05
1858,1.15e-08,2.06e-05
1859,1.1899999999999999e-08,2.0799999999999997e-05
1860,1.2300000000000001e-08,2.1000000000000002e-05
1861,1.27e-08,2.12e-05
1862,1.32e-08,2.14e-05
1863,1.3699999999999999e-08,2.16e-05
1864,1.42e-08,2.18e-05
1865,1.47e-08,2.2e-05
1866,1.5299999999999998e-08,2.23e-05
1867,1.59e-08,2.2499999999999998e-05
1868,1.66e-08,2.2700000000000003e-05
1869,1.7200000000000002e-08,2.29e-05
1870,1.79e-08,2.3199999999999998e-05
1871,1.8700000000000002e-08,2.34e-05
1872,1.9400000000000002e-08,2.37e-05
1873,2.02e-08,2.4e-05
1874,2.09e-08,2.4299999999999998e-05
1875,2.17e-08,2.47e-05
1876,2.2500000000000003e-08,2.5e-05
1877,2.34e-08,2.53e-05
1878,2.4199999999999998e-08,2.57e-05
1879,2.51e-08,2.6e-05
1880,2.5999999999999998e-08,2.63e-05
1881,2.69e-08,2.66e-05
1882,2.78e-08,2.7e-05
1883,2.87e-08,2.7300000000000003e-05
1884,2.96e-08,2.76e-05
1885,3.05e-08,2.8e-05
1886,3.15e-08,2.83e-05
1887,3.24e-08,2.86e-05
1888,3.34e-08,2.9e-05
1889,3.43e-08,2.93e-05
1890,3.53e-08,2.96e-05
1891,3.63e-08,2.9999999999999997e-05
1892,3.75e-08,3.03e-05
1893,3.8800000000000003e-08,3.07e-05
1894,4.02e-08,3.1e-05
1895,4.16e-08,3.14e-05
1896,4.32e-08,3.17e-05
1897,4.48e-08,3.2099999999999994e-05
1898,4.65e-08,3.2500000000000004e-05
1899,4.82e-08,3.29e-05
1900,4.99e-08,3.33e-05
1901,5.18e-08,3.37e-05
1902,5.4e-08,3.4099999999999995e-05
1903,5.6499999999999996e-08,3.46e-05
1904,5.9e-08,3.5000000000000004e-05
1905,6.15e-08,3.5499999999999996e-05
1906,6.399999999999999e-08,3.5999999999999994e-05
1907,6.62e-08,3.6400000000000004e-05
1908,6.810000000000001e-08,3.69e-05
1909,6.95e-08,3.73e-05
1910,7.040000000000001e-08,3.7699999999999995e-05
1911,7.09e-08,3.8100000000000005e-05
1912,7.14e-08,3.85e-05
1913,7.18e-08,3.88e-05
1914,7.220000000000001e-08,3.91e-05
1915,7.26e-08,3.95e-05
1916,7.29e-08,3.9800000000000005e-05
1917,7.31e-08,4.01e-05
1918,7.34e-08,4.05e-05
1919,7.36e-08,4.08e-05
1920,7.389999999999999e-08,4.12e-05
1921,7.41e-08,4.1599999999999995e-05
1922,7.43e-08,4.21e-05
1923,7.45e-08,4.25e-05
1924,7.47e-08,4.2999999999999995e-05
1925,7.49e-08,4.35e-05
1926,7.509999999999999e-08,4.4e-05
1927,7.52e-08,4.44e-05
1928,7.54e-08,4.49e-05
1929,7.559999999999999e-08,4.53e-05
1930,7.57e-08,4.57e-05
1931,7.59e-08,4.61e-05
1932,7.62e-08,4.65e-05
1933,7.65e-08,4.68e-05
1934,7.68e-08,4.71e-05
1935,7.710000000000001e-08,4.74e-05
1936,7.739999999999999e-08,4.77e-05
1937,7.760000000000001e-08,4.8e-05
1938,7.78e-08,4.84e-05
1939,7.8e-08,4.87e-05
1940,7.8e-08,4.92e-05
1941,7.79e-08,4.96e-05
1942,7.77e-08,5.01e-05
1943,7.75e-08,5.06e-05
1944,7.710000000000001e-08,5.1200000000000004e-05
1945,7.669999999999999e-08,5.18e-05
1946,7.64e-08,5.24e-05
1947,7.6e-08,5.3e-05
1948,7.57e-08,5.37e-05
1949,7.559999999999999e-08,5.4399999999999994e-05
1950,7.550000000000001e-08,5.5e-05
1951,7.550000000000001e-08,5.57e-05
1952,7.550000000000001e-08,5.64e-05
1953,7.54e-08,5.72e-05
1954,7.54e-08,5.8e-05
1955,7.54e-08,5.88e-05
1956,7.54e-08,5.96e-05
1957,7.54e-08,6.0400000000000004e-05
1958,7.54e-08,6.12e-05
1959,7.550000000000001e-08,6.2e-05
1960,7.550000000000001e-08,6.28e-05
1961,7.559999999999999e-08,6.36e-05
1962,7.58e-08,6.429999999999999e-05
1963,7.610000000000001e-08,6.510000000000001e-05
1964,7.64e-08,6.59e-05
1965,7.669999999999999e-08,6.67e-05
1966,7.710000000000001e-08,6.75e-05
1967,7.75e-08,6.829999999999999e-05
1968,7.78e-08,6.900000000000001e-05
1969,7.81e-08,6.98e-05
1970,4.45e-07,6.73e-05
1971,4.45e-07,6.96e-05
1972,4.53e-07,6.97e-05
1973,4.1e-07,6.98e-05
1974,4.6099999999999996e-07,6.97e-05
1975,4.4e-07,6.99e-05
1976,4.18e-07,6.97e-05
1977,4.6e-07,6.950000000000001e-05
1978,5.34e-07,6.91e-05
1979,5.72e-07,6.88e-05
1980,1.03e-06,6.840000000000001e-05
1981,1.55e-06,6.809999999999999e-05
1982,1.65e-06,6.769999999999999e-05
1983,1.4e-06,6.75e-05
1984,1.28e-06,6.75e-05
1985,7.67e-07,6.8e-05
1986,5.93e-07,7.07e-05
1987,1.2e-06,7.4e-05
1988,1.2299999999999999e-06,7.76e-05
1989,1.35e-06,8.13e-05
1990,1.38e-06,8.48e-05
1991,1.74e-06,8.8e-05
1992,1.8e-06,9.120000000000001e-05
1993,2.19e-06,9.42e-05
1994,2.99e-06,9.7e-05
1995,3.48e-06,9.98e-05
1996,3.14e-06,0.000102
1997,2.5300000000000003e-06,0.00010499999999999999
1998,2.04e-06,0.000108
1999,1.77e-06,0.00011
2000,1.91e-06,0.00011300000000000001
2001,2.0100000000000002e-06,0.000116
2002,1.25e-06,0.00011899999999999999
2003,1.5100000000000002e-06,0.000122
2004,1.28e-06,0.000125
2005,1.31e-06,0.000129
2006,1.17e-06,0.000131
2007,1.1e-06,0.000134
2008,1.47e-06,0.000136
2009,2.0500000000000003e-06,0.00013800000000000002
2010,2.4e-06,0.00014000000000000001
2011,2.56e-06,0.00014199999999999998
2012,2.56e-06,0.00014399999999999998
2013,2.75e-06,0.000145
2014,2.75e-06,0.000147
2015,2.76e-06,0.000149
2016,2.86e-06,0.000153
2017,2.98e-06,0.000155
2018,3.1e-06,0.000158