Year	constant 2010 US$
1991	8876858117.21393
1992	10314035529.8839
1993	11347039322.9187
1994	12275032816.2521
1995	12770805031.1774
1996	14375854522.5207
1997	14405036210.2156
1998	14660652658.5738
1999	14360262275.2902
2000	14877712086.8988
2001	15604724602.3217
2002	15472654122.9187
2003	15627667316.6169
2004	18815878261.3599
2005	19510795778.3085
2006	19996595794.4279
2007	21366006775.257
2008	23145758601.99
2009	25400062659.8342
2010	27643381799.5357
2011	27967698909.7181
2012	28637547595.3565
2013	29382413266.9983
2014	30119399668.325
2015	30631467330.0166
2016	30854859038.1426
2017	31041817578.7728
2018	31623022885.5721