Year	current US$
1990	18038635210.425976
1991	13173650219.256607
1992	13027215987.535082
1993	13227357732.109652
1994	15254430518.010271
1995	21458485644.96563
1996	21563788951.841362
1997	20753634453.781513
1998	22112575014.42585
1999	22692096242.58405
2000	20240379896.68532
2001	20859261599.21027
2002	23284719201.995014
2003	29319208608.12218
2004	33933993522.670654
2005	35866164656.13729
2006	38985718228.5786
2007	46962587595.12799
2008	54319399961.29999
2009	49729127533.93864
2010	47569634553.81676
2011	50883600760.68104
2012	45851550969.76173
2013	47767746832.5068
2014	49538339538.69983
2015	41777966741.87341
2016	43632048585.544075
2017	47713353120.196556
2018	53372127792.39447
2019	53555776974.36854
2020	53456563151.35112
2021	61087662970.41375
2022	58905498955.811516
2023	67196267038.12138