Year constant 2015 US$ 1960 1947822040.4850144 1961 1934246368.929718 1962 2148971425.613769 1963 2069429463.4134495 1964 2272299708.316821 1965 2379184219.9832554 1966 2456198212.8172803 1967 2960833123.2528 1968 3330189303.2689095 1969 3330958899.616185 1970 3438042938.576807 1971 4138982136.6272435 1972 3902088078.837634 1973 4614880205.017328 1974 6780711718.67405 1975 7154336440.512236 1976 7296610200.928268 1977 8559283208.666853 1978 8882449303.081522 1979 9090759579.809269 1980 9948373145.019278 1981 9637788091.263237 1982 9908058026.329185 1983 7696462709.062593 1984 7419779947.928162 1985 8051587078.560005 1986 8010978712.19105 1987 9450354188.312704 1988 7825528880.120988 1989 8182698830.987559 1990 8055435060.296393 1991 9005046859.488651 1992 9409000543.69666 1993 9357187255.04476 1994 10852136742.489328 1995 12070851207.938269 1996 10550289039.084782 1997 12714456908.593027 1998 13544935765.417355 1999 9265347803.952047 2000 10453325621.23382 2001 11084244158.917795 2002 13386422237.412344 2003 12890811199.553343 2004 13439033488.941547 2005 15341655681.818903 2006 16848457897.075703 2007 18011912877.762623 2008 20578558089.922375 2009 19012681530.959118 2010 21572382214.57488 2011 22378004839.530838 2012 22600528740.20594 2013 24343837525.852684 2014 25730809847.33654 2015 24373891000 2016 21101046459.231476 2017 24021846388.20962 2018 25118026368.030502 2019 25379990796.773388 2020 20740079035.731415 2021 25200815273.722256 2022 27835837823.190926 2023 27584296873.88023