Year	current US$
1995	1694000000
1996	1869000000
1997	1701000000
1998	1525000000
1999	1221000000
2000	1214000000
2001	1095000000
2002	1320000000
2003	1346000000
2004	2495000000
2005	3054000000
2006	3390000000
2007	3484000000
2015	1982000000
2016	2042000000
2017	2139000000
2018	2536000000
2019	2389000000
2020	423000000