Year	current US$
1975	294121024.35279363
1976	347698012.3028017
1977	436400631.91621447
1978	579222627.9633329
1979	773890846.5097933
1980	1175195887.0475872
1981	1463435115.8829994
1982	1035571689.170368
1983	829861471.3731714
1984	691301754.419286
1985	535649476.294486
1986	693008526.1747779
1987	584133789.8981436
1988	1078079310.5835955
1989	1597706572.3770967
1990	1404789694.6899498
1991	1413412991.925747
1992	1350554195.9608078
1993	1629268859.7718282
1994	1006664022.1340221
1995	1791962987.845259
1996	2109662165.732372
1997	1739683144.1874132
1998	2002071643.6884055
1999	1826113801.549821
2000	1308698474.9379723
2001	1507104405.7984426
2002	1936392177.035334
2003	1615393853.4230754
2004	1928344228.7993467
2005	2185573586.1376724
2006	3107633111.074746
2007	4570302574.509559
2008	5636579219.32355
2009	4681739904.252583
2010	6363763366.469314
2011	8178958202.032087
2012	6591250702.867896
2013	9011697973.40409
2014	8796833239.853012
2015	7871520427.829122
2016	8791211256.970013
2017	9312246406.76664
2018	9069173710.328598
2019	8004796524.857866
2020	7752831618.891639
2021	9227697153.764956
2022	8695326891.093737
2023	8632972232.063023