Year	current US$
1995	2727937127.5125275
1996	2918548803.437958
1997	2962886615.879899
1998	3304174417.119964
1999	3321737873.0725255
2000	3317109405.549402
2001	3329310215.137194
2002	3708736833.4801946
2003	4187570858.312434
2004	4849039782.791685
2005	6213974475.362278
2006	7959208077.832928
2007	8920069688.939894
2008	9659427051.091753
2009	9468269288.714138
2010	9350694784.868113
2011	10612098600.678862
2012	10405443388.164385
2013	10595708104.4562
2014	11508059624.679396
2015	11634195823.637167
2016	10878560152.516521
2017	11066297328.248928
2018	11938931650.759562
2019	12478988024.189114