year,IPC2
1850,3.5099999999999997e-08
1851,3.5099999999999997e-08
1852,3.5099999999999997e-08
1853,3.5099999999999997e-08
1854,3.5099999999999997e-08
1855,3.5099999999999997e-08
1856,3.5099999999999997e-08
1857,3.5099999999999997e-08
1858,3.5099999999999997e-08
1859,3.5099999999999997e-08
1860,3.5099999999999997e-08
1861,3.5099999999999997e-08
1862,3.5099999999999997e-08
1863,3.5099999999999997e-08
1864,3.5099999999999997e-08
1865,3.5099999999999997e-08
1866,3.5099999999999997e-08
1867,3.5099999999999997e-08
1868,3.5099999999999997e-08
1869,3.5099999999999997e-08
1870,3.5099999999999997e-08
1871,3.5099999999999997e-08
1872,3.5099999999999997e-08
1873,3.5099999999999997e-08
1874,3.5099999999999997e-08
1875,3.5099999999999997e-08
1876,3.5099999999999997e-08
1877,3.5099999999999997e-08
1878,3.5099999999999997e-08
1879,3.5099999999999997e-08
1880,3.5099999999999997e-08
1881,3.5099999999999997e-08
1882,3.5099999999999997e-08
1883,3.5099999999999997e-08
1884,3.5099999999999997e-08
1885,3.5099999999999997e-08
1886,3.5099999999999997e-08
1887,3.5099999999999997e-08
1888,3.5099999999999997e-08
1889,3.5099999999999997e-08
1890,3.5200000000000004e-08
1891,4.02e-08
1892,5.42e-08
1893,7.53e-08
1894,1.02e-07
1895,1.3200000000000002e-07
1896,1.64e-07
1897,1.97e-07
1898,2.28e-07
1899,2.55e-07
1900,2.78e-07
1901,2.96e-07
1902,3.13e-07
1903,3.29e-07
1904,3.44e-07
1905,3.5799999999999995e-07
1906,3.73e-07
1907,3.88e-07
1908,4.04e-07
1909,4.2099999999999997e-07
1910,4.41e-07
1911,4.6200000000000003e-07
1912,4.84e-07
1913,5.079999999999999e-07
1914,5.33e-07
1915,5.590000000000001e-07
1916,5.87e-07
1917,6.16e-07
1918,6.47e-07
1919,6.79e-07
1920,7.119999999999999e-07
1921,8.64e-07
1922,1.22e-06
1923,1.75e-06
1924,2.41e-06
1925,3.15e-06
1926,3.9399999999999995e-06
1927,4.74e-06
1928,5.5e-06
1929,6.19e-06
1930,6.7699999999999996e-06
1931,7.26e-06
1932,7.74e-06
1933,8.19e-06
1934,8.64e-06
1935,9.07e-06
1936,9.509999999999999e-06
1937,9.94e-06
1938,1.0399999999999999e-05
1939,1.08e-05
1940,1.1299999999999999e-05
1941,1.2e-05
1942,1.3e-05
1943,1.43e-05
1944,1.59e-05
1945,1.77e-05
1946,1.96e-05
1947,2.16e-05
1948,2.36e-05
1949,2.55e-05
1950,2.7400000000000002e-05
1951,2.92e-05
1952,3.12e-05
1953,3.32e-05
1954,3.52e-05
1955,3.73e-05
1956,3.95e-05
1957,4.1700000000000004e-05
1958,4.4e-05
1959,4.62e-05
1960,4.8599999999999995e-05
1961,5.0900000000000004e-05
1962,5.3400000000000004e-05
1963,5.59e-05
1964,5.84e-05
1965,6.110000000000001e-05
1966,6.379999999999999e-05
1967,6.65e-05
1968,6.92e-05
1969,7.199999999999999e-05
1970,7.199999999999999e-05
1971,0.000844
1972,0.00149
1973,0.0023799999999999997
1974,0.024399999999999998
1975,0.208
1976,0.426
1977,0.582
1978,0.368
1979,0.362
1980,0.382
1981,0.459
1982,0.413
1983,0.348
1984,0.434
1985,0.618
1986,0.685
1987,0.481
1988,0.649
1989,0.657
1990,0.558
1991,0.766
1992,0.644
1993,0.365
1994,0.632
1995,0.546
1996,0.523
1997,0.533
1998,0.585
1999,0.589
2000,0.643
2001,0.741
2002,0.905
2003,1.09
2004,1.35
2005,1.55
2006,1.72
2007,2.08
2008,2.21
2009,2.17
2010,3.25
2011,3.62
2012,4.26
2013,4.38
2014,4.65
2015,4.44
2016,4.77
2017,4.88
2018,4.79