Year constant 2015 US$ 1960 1197.0562901733892 1961 1184.3363280979565 1962 1216.8298076788703 1963 1224.3516176472742 1964 1253.7475405816233 1965 1327.8199797222494 1966 1358.996451319021 1967 1398.9750921076106 1968 1448.3654494246575 1969 1415.5488856627617 1970 1423.9928528699443 1971 1437.1144807078992 1972 1474.4102292908976 1973 1543.1001180189426 1974 1480.5076857639792 1975 1467.5598569463946 1976 1571.4876600288228 1977 1681.0793454085717 1978 1726.562566839488 1979 1767.481250663872 1980 1723.8315326164197 1981 1651.3007594464366 1982 1568.7554757567966 1983 1536.238485149594 1984 1585.8643402584771 1985 1627.0720743565105 1986 1665.274818399802 1987 1726.0663908343745 1988 1707.5472272358472 1989 1705.7324413317988 1990 1704.9288966534587 1991 1602.7735094726925 1992 1653.0795439536191 1993 1711.7568313431539 1994 1668.0176477169603 1995 1722.5330419234372 1996 1706.6890071807345 1997 1736.4790577774024 1998 1751.9383895969213 1999 1693.7231046132613 2000 1768.253904834382 2001 1768.2899759344848 2002 1787.0989345908442 2003 1821.1503790755228 2004 1887.0853239874748 2005 1953.3261225659357 2006 2033.071107774283 2007 2110.047332125706 2008 2151.2015609313466 2009 2054.384111910409 2010 2087.2522707216754 2011 2124.187516432123 2012 2169.1562899850624 2013 2187.833433018382 2014 2213.4405067337934 2015 2257.2252836935418 2016 2303.878503988059 2017 2373.7915595410846 2018 2423.276059629031 2019 2443.8817183593765 2020 2188.9724619927283 2021 2426.485743540345 2022 2489.6023364424095 2023 2539.6185928193813