Year	constant 2010 US$
1997	22472973922334.8
1998	23168818060812.1
1999	23926285122931.6
2000	24811326613378.7
2001	25405778966782.5
2002	25902675684514.9
2003	26412913556757.1
2004	27113727028680.9
2005	27952980380803
2006	28696748115927.7
2007	29418120007598.9
2008	29662131024971.4
2009	29171971449540.6
2010	29731953707482.5
2011	30252917432136.5
2012	30711275422261
2013	31092327179061.4
2014	31634411910195.6
2015	32307739620475.3
2016	32823910255596.2
2017	33386260647810