Year	constant 2010 US$
1981	11253692167.1169
1982	11926385110.6697
1983	13461631802.2732
1984	14518394632.37
1985	15266655667.1117
1986	16770628178.9357
1987	17998573815.1551
1988	18199911279.308
1989	20376226036.6226
1990	20457849849.0392
1991	21076305174.7025
1992	20019060801.1208
1993	22211867538.4835
1994	21693984632.4266
1995	22675164871.1254
1996	23210695274.8713
1997	23100992553.7563
1998	24044665550.4568
1999	21874438905.291
2000	22764179400.5774
2001	22385089483.2532
2002	25366488819.3054
2003	25750262657.3482
2004	35655340953.3085
2005	37182074533.2066
2006	49048067678.0273
2007	66366685289.3648
2008	68396499914.1099
2009	68694740289.9997
2010	75494707497.7091
2011	78659543350.6799
2012	82699287244.5335
2013	80297166861.4026
2014	79877252487.6854
2015	83328926011.9538
2016	79186100645.6719
2017	79844838984.3174