Year	constant 2010 US$
1970	8464.19688873244
1971	8636.60749036759
1972	8947.29116354528
1973	9436.97971698657
1974	9434.3610172901
1975	9356.89860524948
1976	9477.58631731169
1977	9983.05924884501
1978	10739.1890550968
1979	11066.9249492337
1980	10987.2180568539
1981	11043.7701335067
1982	10167.7406726175
1983	10181.9167559677
1984	10322.3557257954
1985	10779.0088450294
1986	10990.96490282
1987	11355.204604133
1988	11915.3749730809
1989	12742.4772135045
1990	12911.6937072201
1991	13069.3780088282
1992	13355.2276347848
1993	13674.7928253653
1994	14215.41651906
1995	14630.1800337615
1996	15545.3768849449
1997	16382.2050669898
1998	17475.6331147951
1999	18908.0342771588
2000	20627.9985998605
2001	21242.7026669356
2002	21664.654527147
2003	21928.0623922439
2004	22312.8639499246
2005	23373.0463372707
2006	24273.7518925954
2007	25142.179824537
2008	24699.7280411303
2009	23202.862190696
2010	23180.1100564265
2011	22704.6307454329
2012	22409.4985045603
2013	22361.7748198008
2014	22756.951270937
2015	23237.7563521201
2016	24212.6059838319
2017	24683.3042789149
2018	25279.0232600314