Year	current US$
1990	3001286917.99693
1991	3519854771.77037
1992	3979264309.68797
1993	4593614898.75116
1994	5187965008.78201
1995	5891817099.59597
1996	6525934793.00597
1997	7146275207.57765
1998	6275366768.80938
1999	7133774897.08228
2000	8476345397.0751
2001	9150907697.01892
2002	9330728774.56366
2003	9785699813.61145
2004	10720358295.1102
2005	11191064438.4433
2006	11963930531.0847
2007	12971653614.4442
2008	13819288457.1436
2009	14544468483.7343
2010	16438775867.7514
2011	17851692508.4771
2012	18651971767.2577
2013	19382300686.3309
2014	19801436363.0387
2015	21135963138.8309
2016	22117208227.4638
2017	23446673056.9995
2018	24707684726.2939
2019	24907356124.8097
2020	25066740328.3409
2021	27293273784.487