Year	current US$
1995	2993000000
1996	3053000000
1997	3295000000
1998	3157000000
1999	4304000000
2000	4114000000
2001	2560000000
2002	2145000000
2003	2132000000
2004	2476000000
2005	3189000000
2006	3196000000
2007	3672000000
2008	4650000000
2009	4314000000
2010	4920000000
2011	5161000000
2012	5449000000
2013	5831000000
2014	5887000000
2015	5899000000
2016	5912000000
2017	6834000000
2018	7225000000
2019	7620000000
2020	2500000000