Year	current US$
1996	31400000
1997	37190000
1998	3210000
1999	8045000
2000	3520000
2001	18080000
2002	22791214.4548463
2003	25591178
2004	184166845.259631
2005	207369058.141488
2006	182059933.214311
2007	238832730.679451
2008	223597466.863586
2009	180494515.859856
2010	227429876.335838
2011	300394193.48562
2012	314788691.745455
2013	355297861.233836
2014	390589978.814492
2015	363788468.805367
2016	358015507.114938
2017	367496443.764591
2018	341262575.416442
2019	362671834.147856
2020	304365569.428434
2021	352775607.719648
2022	605440454.645195