Year	constant 2010 US$
1991	2794.74626940213
1992	2843.3863227311
1993	2917.30623973987
1994	2952.87071732553
1995	3119.45731926714
1996	3203.2110929506
1997	3377.6574544624
1998	3517.23328187087
1999	3750.17014133951
2000	3833.29740271516
2001	3901.85346227254
2002	3984.8859589812
2003	4098.26876631093
2004	4264.35574729995
2005	4450.11534949297
2006	4634.36414054698
2007	4898.56726866193
2008	5133.02570779224
2009	5415.97188377848
2010	5700.01208416566
2011	5833.49170125106
2012	6058.06134413111
2013	6295.43654522986
2014	6613.42843018139
2015	6941.56601172872
2016	7277.11569313205
2017	7523.99288213771
2018	7821.5246466606