year,IPC2
1850,1.34e-06
1851,1.34e-06
1852,1.34e-06
1853,1.34e-06
1854,1.34e-06
1855,1.34e-06
1856,1.34e-06
1857,1.34e-06
1858,1.34e-06
1859,1.34e-06
1860,1.34e-06
1861,1.34e-06
1862,1.34e-06
1863,1.34e-06
1864,1.34e-06
1865,1.34e-06
1866,1.34e-06
1867,1.34e-06
1868,1.34e-06
1869,1.34e-06
1870,1.34e-06
1871,1.34e-06
1872,1.34e-06
1873,1.34e-06
1874,1.34e-06
1875,1.34e-06
1876,1.34e-06
1877,1.34e-06
1878,1.34e-06
1879,1.34e-06
1880,1.34e-06
1881,1.34e-06
1882,1.34e-06
1883,1.34e-06
1884,1.34e-06
1885,1.34e-06
1886,1.34e-06
1887,1.34e-06
1888,1.34e-06
1889,1.34e-06
1890,1.34e-06
1891,1.57e-06
1892,2.19e-06
1893,3.14e-06
1894,4.32e-06
1895,5.67e-06
1896,7.11e-06
1897,8.56e-06
1898,9.94e-06
1899,1.12e-05
1900,1.22e-05
1901,1.3e-05
1902,1.38e-05
1903,1.44e-05
1904,1.5100000000000001e-05
1905,1.58e-05
1906,1.6400000000000002e-05
1907,1.7100000000000002e-05
1908,1.78e-05
1909,1.8599999999999998e-05
1910,1.94e-05
1911,2.04e-05
1912,2.14e-05
1913,2.24e-05
1914,2.36e-05
1915,2.47e-05
1916,2.6e-05
1917,2.7300000000000003e-05
1918,2.86e-05
1919,3.01e-05
1920,3.16e-05
1921,3.76e-05
1922,5.16e-05
1923,7.199999999999999e-05
1924,9.74e-05
1925,0.000126
1926,0.000157
1927,0.000187
1928,0.000217
1929,0.000244
1930,0.000266
1931,0.00028599999999999996
1932,0.000304
1933,0.000322
1934,0.00034
1935,0.000357
1936,0.000374
1937,0.000391
1938,0.00040899999999999997
1939,0.000426
1940,0.000444
1941,0.00046300000000000003
1942,0.000483
1943,0.000506
1944,0.00053
1945,0.0005560000000000001
1946,0.000584
1947,0.0006129999999999999
1948,0.000644
1949,0.0006760000000000001
1950,0.000709
1951,0.000745
1952,0.0007840000000000001
1953,0.0008259999999999999
1954,0.00087
1955,0.000916
1956,0.0009649999999999999
1957,0.00101
1958,0.00107
1959,0.0011200000000000001
1960,0.00117
1961,0.00123
1962,0.0013
1963,0.0013700000000000001
1964,0.0014399999999999999
1965,0.00152
1966,0.00159
1967,0.00166
1968,0.00173
1969,0.00173
1970,0.00177
1971,0.00189
1972,0.00171
1973,0.00186
1974,0.00185
1975,0.00186
1976,0.0020299999999999997
1977,0.00221
1978,0.0023799999999999997
1979,0.0027400000000000002
1980,0.0029
1981,0.00278
1982,0.00273
1983,0.00268
1984,0.0029100000000000003
1985,0.0028399999999999996
1986,0.00314
1987,0.00307
1988,0.003
1989,0.0030800000000000003
1990,0.0038799999999999998
1991,0.0034300000000000003
1992,0.00282
1993,0.00244
1994,0.0023599999999999997
1995,0.00256
1996,0.00273
1997,0.00331
1998,0.00418
1999,0.00509
2000,0.0062
2001,0.00708
2002,0.008060000000000001
2003,0.00884
2004,0.009609999999999999
2005,0.0104
2006,0.0116
2007,0.0125
2008,0.0134
2009,0.013900000000000001
2010,0.014199999999999999
2011,0.013800000000000002
2012,0.013300000000000001
2013,0.0261
2014,0.0218
2015,0.0159
2016,0.0143
2017,0.0166
2018,0.0173