Year	constant 2010 US$
1975	4374333331.14247
1976	4549098025.15472
1977	4460411517.3865
1978	4613004551.34609
1979	5089042566.10635
1980	5469873004.40305
1981	4856664481.14915
1982	5006324444.70788
1983	5344052681.05722
1984	5558609442.97327
1985	5410273903.87082
1986	5142740163.70389
1987	4283188691.58341
1988	4787794409.42301
1989	4791767682.79183
1990	5257965091.39954
1991	5030164084.92077
1992	4843420236.58643
1993	5252667393.57446
1994	5318888616.38805
1995	5231476602.27411
1996	4962618437.65091
1997	5333457285.40704
1998	4795740956.16064
1999	4805011927.35455
2000	5211610235.43003
2001	5112278401.20963
2002	5108305127.84082
2003	4936129948.52547
2004	4893748365.92477
2005	5113602825.66591
2006	5218232357.71139
2007	5500334766.89731
2008	5480468400.05323
2009	5885742283.67244
2010	5917528470.62297
2011	6175791239.59599
2012	6022158002.66845
2013	6522790447.13924
2014	6414187641.72494
2015	6563847605.28367
2016	7034018287.2602
2017	7037991560.62902
2018	7171758430.71248