Year	current US$
1995	10260000000
1996	11254000000
1997	11480000000
1998	10849000000
1999	11499000000
2000	12438000000
2001	11961000000
2002	11722000000
2003	13337000000
2004	15524000000
2005	18027000000
2006	20616000000
2007	24643000000
2008	27225000000
2009	24190000000
2010	29977000000
2011	33399000000
2012	37152000000
2013	37886000000
2014	37670000000
2015	33961000000
2016	32712000000
2017	34644000000
2018	34585000000
2019	35776000000
2020	12078000000