Year	current US$
1995	2300677966.101695
1996	3276219739.292365
1997	3836933173.2151613
1998	1716433385.1736653
1999	1379402306.73584
2000	630203954.9820393
2001	2241884541.9604907
2002	3241503269.496244
2003	4473515856.449725
2004	6837799367.606807
2005	6286444483.749989
2006	7060125875.333976
2007	10787682516.872387
2008	13789682988.32629
2009	8425889974.341748
2010	7360268831.798726
2011	9028701792.089281
2012	8345270667.350208
2013	8409872602.863587
2014	7775846445.781287
2015	7408138437.668654
2016	7356470312.825059
2017	8648187132.657782
2018	11472636282.029236
2019	12923621018.912024
2020	12905801803.998268
2021	15884066977.301748
2022	16852261432.144848
2023	16070400723.99678