Year	constant 2010 US$
1970	2660973108.51196
1971	2838173575.14373
1972	3447287081.65214
1973	4772713052.94651
1974	6292568631.65422
1975	6862883840.42433
1976	6746513414.57266
1977	8214004219.04144
1978	8849992977.22477
1979	9207778758.44714
1980	11372801385.5424
1981	13588395435.0239
1982	14090744220.1354
1983	14626038662.6603
1984	15415289160.5001
1985	15258454950.5565
1986	14116927386.5638
1987	15035286895.8808
1988	17059633918.4512
1989	21390132259.9787
1990	25355675235.8992
1991	29134368787.0603
1992	32887830461.6435
1993	39466148613.8276
1994	44711120952.4697
1995	47949686007.8855
1996	52411068237.5586
1997	57768494644.6866
1998	54040143522.3992
1999	57024610412.592
2000	61297312843.4386
2001	63987521560.9574
2002	68768680637.0495
2003	71493006767.8743
2004	76603459780.8202
2005	83166971127.8756
2006	88901808202.167
2007	105486701996.212
2008	114599745056.037
2009	117413905777.529
2010	123625469560.088
2011	132502871689.795
2012	141296451522.772
2013	149810623699.978
2014	159949706621.961
2015	168484058240.974
2016	178089162087.486
2017	189416969358.294
2018	202481139983.236