Year	constant 2015 US$
1991	50033771907.46721
1992	51960178225.19153
1993	53176005365.91797
1994	68663798217.052284
1995	74186016107.0288
1996	78312514848.30026
1997	82340871694.01553
1998	91857791392.19272
1999	144967059645.35516
2000	141986746282.39386
2001	152184221422.86047
2002	171251656844.36984
2003	194780220419.95056
2004	214051690404.78357
2005	224260629595.74588
2006	251983085360.95465
2007	272717083899.91113
2008	301356902409.60284
2009	294130994000.81903
2010	318211957566.9835
2011	127931198286.4103
2012	71699236568.39674
2013	76206037990.66594
2014	86642665054.16592
2015	70127784182.75885
2016	65223699501.43506
2017	72650711845.15723
2018	78870186937.3766
2019	82363797887.81888
2020	82799471651.61662
2021	90044292278.87508
2022	97978009738.9805
2023	102495656053.89449