Year	current US$
1992	14489697909.5279
1993	13995816052.605
1994	12843386924.8239
1995	11840027113.8031
1996	12478020387.086
1997	11882436106.6295
1998	12934274392.2779
1999	10242153168.9223
2000	10755259385.7436
2001	10500098930.6389
2002	12449994604.2536
2003	15269064786.9518
2004	19700842456.929
2005	25861963143.8016
2006	31451240973.1279
2007	38259894385.4761
2008	51003485311.8057
2009	42585360173.9226
2010	47583347699.174
2011	51663370435.2742
2012	54185455632.6217
2013	61288999698.8218
2014	64649151124.5905
2015	45644199338.8615
2016	38402872606.0652
2017	44370032755.9269
2018	48509547432.0455
2019	52403178269.1789
2020	48784605777.4438
2021	54066826262.9851