Year	current US$
1992	5500000000
1993	11100000000
1994	10656302521.008404
1995	6938434982.73878
1996	6839769230.769231
1997	8458551617.873652
1998	8988380663.342728
1999	7186245487.364621
2000	8815230365.908077
2001	8246546762.589928
2002	9286372925.647154
2003	11614414484.685097
2004	15709960838.047272
2005	18064972931.814175
2006	22199798560.07759
2007	27592401028.852608
2008	37020969855.832245
2009	24865004206.870625
2010	29401680706.124878
2011	48462076576.549416
2012	51745313006.03342
2013	44057927601.758995
2014	43300632818.53659
2015	32749612425.977913
2016	29831676604.35985
2017	36550983211.04649
2018	42294690637.25702
2019	41927389217.715225
2020	37444226965.76248
2021	49351334849.872475
2022	46516126575.53025
2023	48014398058.09101