Year	current US$
1995	2211000000
1996	2470000000
1997	2578000000
1998	3297000000
1999	2621000000
2000	2615000000
2001	2791000000
2002	3097000000
2003	3862000000
2004	4375000000
2005	4781000000
2006	5372000000
2007	6072000000
2008	6359000000
2009	4964000000
2010	4085000000
2011	4215000000
2012	3866000000
2013	4470000000
2014	4864000000
2015	4783000000
2016	5199000000
2017	5662000000
2018	6782000000
2019	6417000000
2020	1858000000