Year	current US$
1995	33251396.64804469
1996	34636871.508379884
1997	37944134.07821229
1998	46530726.25698324
1999	62011173.18435754
2000	76829608.93854748
2001	81112849.16201118
2002	86827932.96089385
2003	97657541.89944133
2004	126767039.10614525
2005	146021229.05027932
2006	162157541.89944133
2007	178492178.77094972
2008	189653631.2849162
2009	107412290.5027933
2010	70184357.54189944
2011	110950837.98882681
2012	52085474.86033519
2013	89000000
2014	95987150.83798882
2015	106228491.62011173
2016	110067039.10614525
2017	115463687.15083799
2018	105657541.89944133
2019	87015083.79888268