Year	current US$
1991	64060334.56305752
1992	56396723.455963984
1993	60969372.8081168
1994	48106941.55653606
1995	55496655.5422988
1996	300152722.3142106
1997	319879520.9425011
1998	338232424.66703886
1999	932491809.0737678
2000	951709125.774929
2001	754329236.0990996
2002	603364737.0843693
2003	723475730.8880603
2004	866983403.0686306
2005	943809927.2948899
2006	954135103.4942669
2007	1017262875.9039984
2008	1209038378.4922225
2009	1117613962.3450577
2010	1064083703.053987
2011	1455476220.947034
2012	1669738960.131934
2013	1913094231.5486414
2014	1871909901.3137248
2015	1814660921.182616
2016	1336957096.6917737
2017	1297039812.7852993
2018	1461071186.8597841
2019	1689180856.938202
2020	1548298927.5174549
2021	1961219078.8971205
2022	1826719563.5670776
2023	2141214114.1649253