Year	current US$
1980	1598227047.48605
1981	1385840339.2014
1982	1177105318.7904
1983	1163763744.86913
1984	1110250380.30207
1985	1285859946.76138
1986	1711391596.25396
1987	1939325751.2819
1988	1985666015.00345
1989	2022153888.15611
1990	2468244535.00556
1991	2521717445.1094
1992	2626176636.89307
1993	2635459328.5921
1994	1855906837.79299
1995	2433217715.55886
1996	2500934685.41678
1997	2383947854.74516
1998	2568471475.78317
1999	3120689791.12086
2000	2651035766.29007
2001	2993163659.35411
2002	3218677841.94059
2003	4104816952.7549
2004	4746383230.4884
2005	5472585572.62386
2006	5814530305.53621
2007	6788139873.93396
2008	8338043621.11398
2009	8491512662.33941
2010	8982161281.03757
2011	10794540190.0653
2012	9920099635.32296
2013	10911995463.2717
2014	12280373209.1594
2015	11230006151.9712
2016	11991429511.0608
2017	13224914093.3595
2018	14667827673.5098
2019	14642172529.5736
2020	14585745029.6027
2021	14504169501.2838