Year	constant 2015 US$
1990	9145758851.871756
1991	9325731464.821302
1992	9339808824.542948
1993	9509305838.485086
1994	9662170467.939962
1995	10076109127.346666
1996	10796972137.884098
1997	11736627646.659042
1998	13405487084.238474
1999	14056821818.978977
2000	14227173108.298843
2001	14642948978.208841
2002	15493180538.869276
2003	15793643723.911703
2004	16747392143.382225
2005	18179401390.79488
2006	19887519689.972805
2007	20980627183.638535
2008	20986892528.56646
2009	21136818085.76027
2010	23987875707.421944
2011	26665771215.171074
2012	25899193520.411247
2013	27047990625.164337
2014	28494882989.843784
2015	30279416170.778214
2016	30618273123.950737
2017	31899945447.96741
2018	33878886963.471672
2019	34940640880.697174
2020	35271419474.38702
2021	36082662122.275246
2022	37742464579.919304
2023	38646551762.00337