Year current US$ 1960 214480835.87655208 1961 178045079.99655107 1962 163881254.88108802 1963 181649471.15668404 1964 227656462.22540596 1965 245638660.91858 1966 270002331.11660486 1967 307238167.0820323 1968 359393149.3185236 1969 376645413.1529002 1970 372412385.53267014 1971 459682187.7679408 1972 495423307.76441914 1973 648350559.9182009 1974 1237513769.0953968 1975 1494854035.0828047 1976 1634569959.010366 1977 2000105050.3191028 1978 2213274158.321836 1979 2575839827.277266 1980 3196674206.9451265 1981 3336485176.3994956 1982 3538834101.534635 1983 2627142401.21018 1984 2652199403.514283 1985 2750017258.26671 1986 2677095328.6624293 1987 3118843926.2406693 1988 3087611966.1317773 1989 3449082110.3308487 1990 3326815544.6458855 1991 3656282141.070535 1992 3740586293.146573 1993 4381543771.885942 1994 5336068034.017008 1995 6016443221.6108055 1996 5535280640.32016 1997 6613086543.271635 1998 7136267133.566783 1999 4483779889.944972 2000 4885305652.826413 2001 6596149000 2002 7867963000 2003 7901011000 2004 9493787000 2005 11814190000 2006 13771502000 2007 15636624000 2008 20979384000 2009 16849259999.999998 2010 22688729000 2011 26794099000 2012 28225697000 2013 29992847000 2014 30888617000 2015 24373891000 2016 19529599000 2017 23120886000 2018 26295241000 2019 25859813000 2020 19849665000 2021 28090507000 2022 35949394000 2023 34206375999.999996