Year	constant 2010 US$
1970	17441531087.2296
1971	18212809768.5996
1972	21719712427.513
1973	22793022418.4933
1974	29283484943.9314
1975	29721771737.6726
1976	31946443492.0939
1977	33458557696.9754
1978	36328899213.3212
1979	35138635304.0457
1980	42928930540.4413
1981	50496204017.8849
1982	52673430316.749
1983	56761847713.611
1984	57516721021.3071
1985	59326112520.0943
1986	54965934797.6371
1987	51437801191.5362
1988	49582386152.9935
1989	50000813835.8559
1990	51278556507.5743
1991	53139369702.82
1992	52653727300.5062
1993	49107337171.3314
1994	48355148209.5012
1995	48990866049.0274
1996	50869181995.0749
1997	53806044122.5768
1998	54789238330.4138
1999	56022391105.6827
2000	66076575100.9024
2001	68935939451.3295
2002	70694582518.4557
2003	77638108376.4594
2004	82022136848.7586
2005	88779806478.356
2006	95042405422.8405
2007	103900957861.358
2008	109560967159.387
2009	106795169665.582
2010	122584225665.032
2011	124388227458.707
2012	133604209807.582
2013	138217331108.929
2014	143229414927.846
2015	143123096701.045
2016	149981865088.817
2017	150182913553.381