Year	constant 2010 US$
1994	5160.58194802102
1995	5140.52815929204
1996	5321.39679038991
1997	5857.03658202075
1998	6298.12609983124
1999	6515.89272282384
2000	6934.72292638759
2001	7478.76310467515
2002	8103.58763662909
2003	8872.10319923346
2004	9717.10904632295
2005	10873.4142851194
2006	12278.3070358248
2007	13614.2563693779
2008	13270.0004134053
2009	11547.9907675541
2010	11326.2194746243
2011	12270.3406215312
2012	12924.7261592272
2013	13381.3317300188
2014	13758.9553079116
2015	14284.2883301309
2016	14713.0180826353
2017	15532.2250291868
2018	16405.7332166326