Year	current US$
1995	5165000000
1996	5920000000
1997	6261000000
1998	5930000000
1999	6181000000
2000	6388000000
2001	5735000000
2002	5963000000
2003	7337000000
2004	10667000000
2005	11749000000
2006	12537000000
2007	16454000000
2008	19617000000
2009	18738000000
2010	22558000000
2011	27371000000
2012	28078000000
2013	28575000000
2014	30123000000
2015	29190000000
2016	30839000000
2017	34470000000
2018	36953000000
2019	35968000000
2020	6488000000