Year	current US$
1995	9257000000
1996	10367000000
1997	9052000000
1998	7954000000
1999	9416000000
2000	9935000000
2001	9378000000
2002	10388000000
2003	10456000000
2004	13054000000
2005	12103000000
2006	16624000000
2007	20625000000
2008	22510000000
2009	19811000000
2010	23796000000
2011	30924000000
2012	34565000000
2013	41765000000
2014	38451000000
2015	44851000000
2016	48459000000
2017	57057000000
2018	61383000000
2019	64371000000
2020	15360000000