Year	constant 2011 international $
1997	6418830525.84956
1998	6733353413.42437
1999	6100418358.99294
2000	6289531170.54393
2001	6358706121.16193
2002	6479771683.90685
2003	6640642342.16996
2004	6934560688.98923
2005	7224467039.05927
2006	7843345192.85875
2007	8377484827.46501
2008	8982572962.52272
2009	8462024518.20157
2010	8693405169.79262
2011	8974067442.65285
2012	8729634606.6474
2013	9039450553.8491
2014	9200685610.44733
2015	9512627576.11021
2016	9793187181.18554
2017	10255079423.2589
2018	10752906474.5648