Year	current US$
1991	16531329942.18598
1992	13336132556.791538
1993	14115147033.175272
1994	13974135762.029812
1995	10858830254.751635
1996	10060761895.70136
1997	10809521859.101679
1998	12078448232.35974
1999	12007184054.896254
2000	13592724701.232063
2001	14503098070.897207
2002	15446207248.703606
2003	18044505030.86819
2004	22046237219.722042
2005	23832756508.34639
2006	27085004300.98504
2007	34441845123.99205
2008	38666060141.22835
2009	38346424695.10438
2010	41730913134.90315
2011	46940428555.13677
2012	42752439185.46667
2013	44229680984.78686
2014	48319015007.34031
2015	45620429669.27303
2016	42517949587.96627
2017	44405065165.108574
2018	46776702418.30429
2019	49016144887.01232
2020	50645720101.1647
2021	51772305660.916336
2022	61538240672.42026
2023	73528337795.21516