Year	current US$
1995	11686000000
1996	11777000000
1997	10672000000
1998	10399000000
1999	7517000000
2000	7001000000
2001	7408000000
2002	7743000000
2003	9761000000
2004	10812000000
2005	11077000000
2015	11337000000
2016	11634000000
2017	12878000000
2018	14109000000
2019	13922000000
2020	5551000000