Year	constant 2010 US$
1995	4790.48446050662
1996	4975.05507045346
1997	5093.44539929823
1998	5064.5697257395
1999	5169.49398399142
2000	5384.10633894571
2001	5478.05512554584
2002	5624.26738467691
2003	5825.29314166334
2004	6086.71917396473
2005	6329.15798865628
2006	6656.13963413066
2007	7051.78476529031
2008	7236.15270265766
2009	7247.0655536053
2010	7706.6225253788
2011	7994.88509037874
2012	8328.71521207567
2013	8659.76641671668
2014	8992.46928881728
2015	9288.55901846909
2016	9581.46249197161
2017	9958.8212190833