Year	constant 2010 US$
1995	20685.7783535452
1996	21591.2285872174
1997	22223.7925048716
1998	22650.2945050173
1999	23362.2397389959
2000	24771.0374521911
2001	25545.5319355909
2002	26558.7867073585
2003	26844.1355800863
2004	27543.1800891372
2005	28367.1481088372
2006	28855.111698484
2007	30003.2137704958
2008	30102.8821540379
2009	29314.8525509222
2010	29546.7808202536
2011	30132.5366424956
2012	30747.3261204252
2013	31030.0096344847
2014	30914.0441673906
2015	31283.3184061589
2016	31825.6404741734