Year	constant 2015 US$
1993	14445081556.058743
1994	15076509984.669922
1995	15322525461.077644
1996	14715412755.957808
1997	13855507906.425194
1998	14686886998.103275
1999	13865312823.834396
2000	14037389339.135508
2001	13926810673.52419
2002	12543550372.850777
2003	15504479884.046017
2004	16218024596.992414
2005	17354110374.51674
2006	17373057144.285564
2007	18647538696.99929
2008	18753166617.03896
2009	19172567522.37898
2010	20495163971.15053
2011	19232436029.438805
2012	22339873687.473217
2013	25169395872.676342
2014	27126206458.82369
2015	28930444280.725204
2016	29629385460.443996
2017	30329660618.04259
2018	30915685062.371487
2019	32617868710.99676
2020	32182315777.357185
2021	33634912488.96066
2022	34662705797.89352
2023	35865458586.81949