year,IPC2
1850,0.0
1851,0.0
1852,0.0
1853,0.0
1854,0.0
1855,0.0
1856,0.0
1857,0.0
1858,0.0
1859,0.0
1860,0.0
1861,0.0
1862,0.0
1863,0.0
1864,0.0
1865,0.0
1866,0.0
1867,0.0
1868,0.0
1869,0.0
1870,0.0
1871,0.0
1872,0.0
1873,0.0
1874,0.0
1875,0.0
1876,0.0
1877,0.0
1878,0.0
1879,0.0
1880,0.0
1881,0.0
1882,0.0
1883,0.0
1884,0.0
1885,0.0
1886,0.0
1887,0.0
1888,0.0
1889,0.0
1890,0.0
1891,0.0
1892,0.0
1893,0.0
1894,0.0
1895,0.0
1896,0.0
1897,0.0
1898,0.0
1899,0.0
1900,0.0
1901,0.0
1902,0.0
1903,0.0
1904,0.0
1905,0.0
1906,0.0
1907,0.0
1908,0.0
1909,0.0
1910,0.0
1911,0.0
1912,0.0
1913,0.0
1914,0.0
1915,0.0
1916,0.0
1917,0.0
1918,0.0
1919,0.0
1920,0.0
1921,0.0864
1922,0.321
1923,0.666
1924,1.09
1925,1.54
1926,2.0
1927,2.42
1928,2.76
1929,3.0
1930,3.08
1931,3.02
1932,2.83
1933,2.55
1934,2.21
1935,1.84
1936,1.47
1937,1.13
1938,0.851
1939,0.662
1940,0.592
1941,0.604
1942,0.638
1943,0.691
1944,0.76
1945,0.843
1946,0.937
1947,1.04
1948,1.15
1949,1.25
1950,1.36
1951,1.48
1952,1.61
1953,1.75
1954,1.91
1955,2.08
1956,2.26
1957,2.46
1958,2.67
1959,2.9
1960,3.14
1961,3.41
1962,3.73
1963,4.1
1964,4.51
1965,4.96
1966,5.45
1967,5.98
1968,6.54
1969,7.13
1970,8.26
1971,8.83
1972,9.12
1973,10.6
1974,11.7
1975,10.4
1976,12.4
1977,13.7
1978,14.9
1979,15.4
1980,16.3
1981,16.6
1982,15.5
1983,17.8
1984,18.6
1985,18.4
1986,19.5
1987,20.1
1988,23.2
1989,24.6
1990,23.4
1991,23.6
1992,25.3
1993,28.0
1994,32.0
1995,35.8
1996,42.2
1997,49.1
1998,51.0
1999,44.8
2000,46.4
2001,46.7
2002,50.2
2003,56.8
2004,60.9
2005,67.5
2006,72.8
2007,79.1
2008,84.1
2009,84.4
2010,90.2
2011,91.8
2012,94.2
2013,96.2
2014,98.5
2015,95.3
2016,93.4
2017,91.4
2018,85.4
