Year	current US$
1993	1063099999.9999999
1994	3046700000
1995	2017510000
1996	1799020000
1997	1813020000
1998	2088570000.0000002
2000	1255390000
2001	1045300000
2002	1431290000
2003	4182760000
2004	3890970000
2005	6383990000
2006	11378040000
2007	13344620000
2008	10854100000
2009	10966800000
2010	14460870000
2011	10202610000
2019	25061520000
2020	21398330000
2021	22915780000
2022	16107680000