Year	current US$
1996	41500000
1997	50600000
1998	50675833.2425631
1999	42528019.7653899
2000	58235451.3536032
2001	826200309.55945
2002	1176951496.86156
2003	1718485429.27941
2004	1722769584.63433
2005	1612912427.00584
2006	1716435980.56618
2007	1693553171.13885
2008	1918650334.46895
2009	1591794627.63678
2010	1332910000
2011	1483190000
2012	1448880000
2013	1666960000
2014	1684740000
2015	1494740000
2016	1665570000
2017	2193590000
2018	2408230000
2019	2342370000
2020	2059500000
2021	1977520000
2022	2033320000
2023	2479840000