Year	constant 2010 US$
1988	4187911082.79657
1989	3964207061.44419
1990	3960298245.48404
1991	4020634435.57809
1992	3908210935.55943
1993	3750320974.12387
1994	3572483929.18257
1995	4391706498.59908
1996	5070681765.05829
1997	5340608467.2218
1998	5409960209.08465
1999	4647571423.03121
2000	6776811005.01778
2001	6454123532.63742
2002	6367093004.2918
2003	6013406931.42508
2004	5927814244.24465
2005	6176991598.54798
2006	6192545333.12141
2007	6572984171.02287
2008	6372883811.8113
2009	6755064894.48126
2010	6254454290.76792
2011	6590528445.83658
2012	6636058029.27221
2013	6952474601.37333
2014	7063186208.14461
2015	7357832833.20638
2016	7340003588.00001
2017	7194956411.5875