Year	constant 2010 US$
1993	164778949115.998
1994	174778417153.336
1995	167127176354.553
1996	176376933432.799
1997	192209522859.26
1998	198888953252.119
1999	194914818119.995
2000	193629057305.824
2001	182512135653.329
2002	156313989421.842
2003	169083231466.804
2004	185145492346.306
2005	198832517974.634
2006	220617074771.872
2007	241220158330.465
2008	258695711975.057
2009	244732217766.702
2010	272113324478.662
2011	297606857130.719
2012	300911131874.642
2013	311861323982.674
2014	298269695701.419
2015	309175020911.041
2016	306762619801.57
2017	318988886459.942
2018	311312253746.297