Year	current US$
1990	772096030.985273
1991	523169731.318088
1992	1159711187.66987
1993	1429114643.2575
1994	1770170458.60585
1995	1736065019.97626
1996	2085145866.44058
1997	2257623974.07372
1998	1947626101.50961
1999	1725703646.19305
2000	2157244652.46035
2001	1838604245.21159
2002	1706245500.66506
2003	1707047208.26448
2004	1481029808.09263
2005	2007093249.01149
2006	2604961180.74764
2007	4560977105.31349
2008	6027357768.55889
2009	6392052663.45375
2010	5463534606.46448
2011	8183102056.6257
2012	10503574404.8271
2013	12268142911.1865
2014	11898825028.6897
2015	14919489045.9718
2016	14642953419.1796
2017	16751428042.9985
2018	15423643113.7271
2019	14604849547.1983
2020	9688278902.98639
2021	11552818708.8307