Year	constant 2010 US$
1994	8186.98488314718
1995	8311.14846594928
1996	8081.25415151145
1997	8050.68143763474
1998	7644.06194208993
1999	7392.94391637526
2000	7554.68216014497
2001	6991.28802888048
2002	6903.17599322941
2003	7061.98533484458
2004	6976.42053291612
2005	7460.35749648191
2006	7492.26852669228
2007	7515.25308879873
2008	7958.55634234937
2009	8012.46004203261
2010	8412.93798175303
2011	9014.35913518711
2012	9483.5696739472
2013	9958.10211479804
2014	10326.2210655466
2015	10879.9037844243
2016	11101.8728800755
2017	10682.4863190212
2018	10691.6709697255