Year	constant 2010 US$
1990	15414753991.2066
1991	16067175615.748
1992	16721323037.022
1993	15449273634.2595
1994	15326728777.8081
1995	15074735259.908
1996	14444793184.6597
1997	14889827010.2536
1998	15414778713.8744
1999	16391032366.4893
2000	16608848186.7361
2001	15667069058.3054
2002	17680690025.8782
2003	16937922502.0106
2004	16546167416.2846
2005	17854629291.3573
2006	16781220498.6235
2007	16174783654.3508
2008	17287367986.5605
2009	16257835594.0778
2010	16176350607.9425
2011	17942382555.4094
2012	16702869419.6717
2013	16771818313.5233
2014	18812078728.2884
2015	19009523379.2598
2016	17939248493.7094
2017	18417189580.8624
2018	17965887786.385