Year	current US$
1992	470000000
1993	483000000
1994	565000000
1995	745000000
1996	795000000
1997	875000000
1998	630000000
1999	465000000
2000	472000000
2001	568000000
2002	644000000
2003	790000000
2004	985000000
2005	1091000000
2006	1052000000
2007	1342000000
2008	1591000000
2009	1283000000
2010	1541000000
2011	2217000000
2012	2162000000
2013	2428000000
2014	2340000000
2015	1967000000
2016	2045000000
2017	2425000000
2018	2706000000
2019	2779000000
2020	2467000000
2021	3144000000
2022	4332000000
2023	4049000000