Year	constant 2010 US$
1960	4083873552.51312
1961	4271157679.05374
1962	4583747105.02623
1963	4625515445.0343
1964	4506947160.90776
1965	4806736642.76179
1966	4853221073.5463
1967	4940126354.351
1968	5106526186.7064
1969	5188715718.2329
1970	6075957747.35339
1971	6061136692.43426
1972	5877894632.26848
1973	6857431063.92226
1974	9383072925.39816
1975	7779031510.97451
1976	8493810220.11114
1977	9834442178.1379
1978	11100293843.718
1979	13368588711.9307
1980	16110483747.788
1981	17011199062.4321
1982	19350904287.3553
1983	21093052714.9111
1984	22465345906.6778
1985	20255663003.3218
1986	18945347614.1691
1987	20550735742.4482
1988	24602257955.3569
1989	30925362546.956
1990	39054257738.0398
1991	48899503554.6863
1992	52016337959.0823
1993	59837112228.7417
1994	75176752662.134
1995	92992185216.2305
1996	97535349942.5662
1997	103216370432.461
1998	83859329545.8073
1999	92717669398.6526
2000	115317173170.656
2001	105820759957.778
2002	112366771848.126
2003	117461223650.306
2004	140526330787.619
2005	153048409052.808
2006	165552555214.057
2007	175528693179.349
2008	179634683369.035
2009	156764591350.781
2010	181098692993.077
2011	192526466114.06
2012	198132935953.556
2013	201548539318.866
2014	209588339387.166
2015	211271615286.703
2016	213958585576.356
2017	237259942255.751
2018	237493402874.794