Year	constant 2010 US$
1970	16110.7809865055
1971	16133.4186657692
1972	16049.5575875717
1973	17159.9496863258
1974	16692.9639187182
1975	17167.9465612968
1976	18430.8338903113
1977	18738.0165164445
1978	19002.8983559657
1979	19151.8844737563
1980	18700.5974186079
1981	18470.9436086344
1982	18744.814241263
1983	19116.481930773
1984	19799.2017976783
1985	20679.6423554266
1986	22124.4213874065
1987	21675.7773385656
1988	21268.1764228796
1989	21323.044555924
1990	21458.9434233779
1991	21750.6054919071
1992	22234.9456504158
1993	21970.2505230114
1994	23354.0725007513
1995	23622.7629348966
1996	24066.109977684
1997	24672.2880233187
1998	25161.1347505768
1999	25047.9810487296
2000	25060.9375355602
2001	25028.3382070827
2002	25309.2486563654
2003	25577.2732335378
2004	26696.7982089718
2005	27607.9575371619
2006	28328.5352640147
2007	28702.1191360084
2008	28673.8935694836
2009	27542.0038405093
2010	27634.8021227056
2011	27597.1564556188
2012	27634.3811932103
2013	27596.2999293547
2014	27706.9834972574
2015	28139.3625038039
2016	28507.1210076996
2017	28917.6589683435
2018	29380.3721703824