Year	constant 2010 US$
1970	5124557932.94572
1971	5581162452.07909
1972	6687809579.68107
1973	6569039446.46047
1974	7305963716.8456
1975	7630869658.00032
1976	7878852188.34137
1977	7934233492.73651
1978	8658691898.23075
1979	9053729339.35048
1980	9567852171.45736
1981	10364573512.1856
1982	10472937985.0167
1983	10877561771.8297
1984	11106741760.5246
1985	11266685001.3534
1986	10889653824.4439
1987	11535188777.0245
1988	11678697595.7911
1989	11982419990.718
1990	13187716079.0218
1991	13386126300.175
1992	13257505878.295
1993	13208454122.4524
1994	13821241177.353
1995	14390685598.2784
1996	15503094160.0478
1997	16482835111.5644
1998	17421141339.0657
1999	18446441125.5988
2000	18836016511.2612
2001	20262632458.245
2002	20489906759.0967
2003	21923748086.3569
2004	23099101054.6945
2005	23373013336.6823
2006	25074019771.8564
2007	26810723506.9428
2008	27521107083.8016
2009	31254770154.6006
2010	33508294821.939
2011	34037160384.7738
2012	36480373858.07
2013	39224137529.3643