Year	current US$
1981	1783568266.6666667
1982	1734867166.6666667
1983	2120848600
1984	1638919725
1985	1720446900
1986	2500509266.6666665
1987	2752593733.333333
1988	2915297466.6666665
1989	2759759700
1990	1925760000
1991	1809484210.5263157
1992	845023474.1784037
1993	491164022.9497131
1994	608671496.4140337
1995	939112146.4077929
1996	956633351.7504463
1997	781956100.7101356
1998	833460020.9053612
1999	773134397.006267
2000	1027921909.877501
2001	1171233466.1416283
2002	1302201565.490578
2003	1345898647.932039
2004	1579979106.7933316
2005	1698653003.2030365
2006	2013818977.3766282
2007	2612073186.2124367
2008	3985474757.0995774
2009	3325558626.5079513
2010	4882025818.017197
2011	6635349934.811918
2012	8180303260.213027
2013	8713850429.2363
2014	8515647272.306169
2015	8920790763.391907
2016	8574020597.230377
2017	8058784638.179755
2018	9310110589.667864
2019	9997043694.531683
2020	10155385066.110687
2021	10381835048.324862
2022	11278755128.139717
2023	12143747232.29106