Year	constant 2010 US$
1995	4599.63773117231
1996	4864.55815797119
1997	5179.96725347503
1998	5472.50832494314
1999	5702.72826638099
2000	5797.6042557965
2001	5434.59971233766
2002	5673.45686156493
2003	6272.3939041638
2004	6467.48160190977
2005	5471.70158271906
2006	6734.42699467905
2007	7087.65368738208
2008	7572.79543550442
2009	6827.64870626618
2010	7076.66242320238
2011	7384.8492111405
2012	7251.67627055564
2013	7436.06179246294
2014	7624.76597039564
2015	7501.54519042946
2016	7699.71311647338
2017	7885.48897534179
2018	8049.93383472931