Year current US$ 1960 116.07996353836239 1961 120.27086837817008 1962 125.41477362472122 1963 129.6098030899958 1964 140.34696411108337 1965 154.88230693858404 1966 172.13021521500426 1967 190.1830896716157 1968 204.25746272536426 1969 226.7715147595103 1970 259.36235954668587 1971 281.54632836886157 1972 328.93933661074794 1973 486.1562140499832 1974 536.8641177099079 1975 485.46146202630257 1976 529.3870887908201 1977 562.3671390747763 1978 653.7370479935373 1979 754.0547035903536 1980 819.9620893677736 1981 788.3033452989811 1982 732.156536050376 1983 775.6059539249488 1984 756.4643927818316 1985 702.910410899982 1986 751.6488052190218 1987 873.20896761426 1988 993.6208299934572 1989 942.1804042211387 1990 833.0536632774741 1991 948.9851422973953 1992 1058.341135968186 1993 1159.1397604293609 1994 1236.1105838927253 1995 1004.2496990484841 1996 1077.1885044260237 1997 995.1972595154721 1998 737.4137210280041 1999 653.4081341216482 2000 639.2791999186089 2001 540.6738895923542 2002 509.0304918575179 2003 580.5981671743799 2004 624.0353213254897 2005 748.7350734050333 2006 1245.4741760294762 2007 1379.1269934928791 2008 1635.039565845578 2009 1578.9686283211156 2010 1879.2405590223182 2011 2303.826611363498 2012 2653.0927897027586 2013 2578.4986472075807 2014 2742.250049982315 2015 2502.0734449802785 2016 2332.6758883467846 2017 2495.140773129318 2018 2584.3278020812204 2019 2593.7755539322698 2020 2446.0846866061465 2021 2624.6041097836323 2022 3115.9229225344898 2023 2994.4533269188005