Year	constant 2010 US$
1997	23416216451928.5
1998	24157886943599.4
1999	24971741303880.4
2000	25911324634609.9
2001	26527580857618.4
2002	27052713480582.7
2003	27586591637007.5
2004	28343629319421.5
2005	29240444226358.6
2006	30047507709194.8
2007	30845526178701.9
2008	31133036824644
2009	30657584925532.4
2010	31278689527758.9
2011	31863323115802
2012	32373381749440.7
2013	32822688938080.1
2014	33436480273800.5
2015	34176972768994.6
2016	34752400317169.8
2017	35367872728292.5