Year	current US$
1993	10499870000
1994	9956700000
1995	12970260000
1996	18933330000
1997	29655850000
1998	22765250000
1999	20019720000
2000	19459900000
2001	22633510000
2002	31460220000
2003	60951560000
2004	72903660000
2005	103720260000
2006	107063210000
2015	96113490000
2019	118141910000
2020	105986840000
2021	136620460000
2022	152683010000