Year	current US$
1990	3741637887.2524123
1991	3941192978.1184325
1992	3955485832.5786
1993	3875096041.2274537
1994	4023178312.9671373
1995	6106840522.875817
1996	9517206590.621038
1997	9651085306.446133
1998	10282749748.293993
1999	8923241020.033224
2000	7912452012.793743
2001	9433312935.74568
2002	10619402832.307861
2003	12003836753.275661
2004	15364060707.41587
2005	18634101044.09649
2006	20148505173.659973
2007	24415844700.153805
2008	28664078390.17109
2009	18329470431.861317
2010	22325108438.166706
2011	25698802646.50783
2012	19612507211.93672
2013	20770784654.102413
2014	22177659968.137177
2015	21893696111.964832
2016	20931672905.993046
2017	22055916753.354156
2018	24785436298.59606
2019	25082780184.439175
2020	21232727783.547142
2021	26260517937.04609
2022	26636748413.157692
2023	26050283835.002422