Year	constant 2010 US$
1970	6037.9931383289
1971	6563.97638024089
1972	6414.7512311489
1973	6684.15370128433
1974	6801.40069477143
1975	6699.54228534779
1976	6450.53002677792
1977	6695.19519855182
1978	6245.67361515126
1979	6569.12126956912
1980	6726.84657860802
1981	6188.4637334877
1982	5628.14024992625
1983	5800.63732632876
1984	5816.58267325456
1985	5339.88540950164
1986	5739.80170151508
1987	5715.41694654715
1988	5612.70813666432
1989	4799.20509386832
1990	4777.38239922112
1991	5467.23898368807
1992	6200.88827672398
1993	6489.00871457957
1994	6758.58565263115
1995	6382.88668750044
1996	6683.98115174232
1997	6964.11687634324
1998	7128.54727619769
1999	6662.9578592877
2000	6533.387413001
2001	6139.78308361705
2002	5279.05957777144
2003	5827.04784789666
2004	5721.71551392779
2005	6106.28791653099
2006	7330.13516331876
2007	8133.56926606045
2008	8546.56997650082
2009	7925.65188423398
2010	8810.35921254626
2011	9573.25219957637
2012	9399.50533347834
2013	9477.49153403668
2014	9050.80663811605
2015	9308.96047474667
2016	8965.98928395391
2017	9110.29320241085