Year	constant 2010 US$
1988	888165824.156878
1989	861327964.745184
1990	929529960.174874
1991	976707725.902784
1992	960923685.371098
1993	915451737.599275
1994	814496727.404403
1995	851338371.658954
1996	944443468.99776
1997	992050574.352028
1998	1028262946.76046
1999	1070027968.8522
2000	1112618124.34756
2001	1109686201.0001
2002	1123488074.20487
2003	1125983328.11759
2004	1082940198.12307
2005	1100406975.51215
2006	1129882162.35623
2007	1187740862.45756
2008	1247938863.10208
2009	1259791319.18752
2010	1191483743.32665
2011	1250434117.0148
2012	1294257013.85705
2013	1345409719.06793
2014	1397966004.60472
2015	1435858446.22424
2016	1453479211.25718
2017	1470008424.47393
2018	1491215716.90296