Year	current US$
1995	1076000557.68218
1996	1400430744.61132
1997	938655734.552949
1998	1238564245.24617
1999	1033935433.70475
2000	509774653.60932
2001	746831555.311888
2002	1432203529.94229
2003	1091891808.98297
2004	1277840933.47251
2005	1402408708.83193
2006	2091483549.96106
2007	3262531929.52806
2008	3916118592.4799
2009	3032975810.95805
2010	4371127016.58527
2011	6147429489.95601
2012	4479700667.09716
2013	6899941229.17427
2014	6842173323.60985
2015	6241387228.17975
2016	7026437979.62857
2017	7740736624.3521
2018	7120051004.23188
2019	6187574104.7623
2020	5924352564.4985
2021	6851131489.54446