Year	current US$
1992	24150000000.000004
1993	12884204133.2812
1994	6758801655.802995
1995	6043617683.231339
1996	5521933157.452844
1997	5265845519.517477
1998	5354705132.159457
1999	4836508825.299388
2000	6352189539.074165
2001	6736847686.571306
2002	9656903117.375673
2003	8651034121.0321
2004	10160866713.677488
2005	11227938560.810255
2006	12935882645.397852
2007	14967629186.213781
2008	17289554792.921833
2009	18779552731.68919
2010	20430702014.701637
2011	22402540282.863487
2012	25959164643.293903
2013	29063367488.080265
2014	32572882626.410606
2015	34874329938.95038
2016	36861850048.075806
2017	37221273740.09933
2018	41634219503.615654
2019	45692407058.66061
2020	49887060271.95089
2021	53924709479.36664
2022	60052867645.06789
2023	67082242168.660904