Year	current US$
1993	2232982323.54227
1994	2392479024.16913
1995	2088121956.80447
1996	1871108915.80362
1997	2034104518.87745
1998	1970925326.74971
1999	2032974119.29708
2000	2075383549.56114
2001	2379630322.4399
2002	3130848871.0879
2003	4560007227.51813
2004	5191015559.87843
2005	5592038700.28683
2006	5688423105.6609
2007	6788909286.16784
2008	7484199195.52993
2009	6067622652.17698
2010	5730917159.65423
2011	6037565225.43581
2012	5102124334.54408
2013	5415407533.24562
2014	5925475583.26867
2015	5269329156.82879
2016	5493783757.66564
2017	5936376734.38156
2018	6420006122.88558
2019	6207058144.90849
2020	5965780593.54863
2021	6847295509.42388