Year	current US$
1991	2566388888.8888893
1992	2316562500
1993	2022612878.7878788
1994	1647641902.097902
1995	1621583220.164609
1996	1788170586.1678448
1997	1703264035.7194295
1998	1566763747.9053104
1999	1175061487.0145676
2000	1287688498.0677826
2001	1466016371.3115008
2002	1547843103.8780367
2003	1857008090.4964125
2004	2109434585.003399
2005	2372146811.037725
2006	2786068889.171143
2007	3752070495.709149
2008	4933258864.514469
2009	4508661415.359107
2010	4489261604.793342
2011	5538865998.780641
2012	6435842809.788403
2013	6912033442.545664
2014	7159302170.583258
2015	6417477543.551632
2016	6455295204.830455
2017	7331338207.040886
2018	8020105523.913892
2019	8591968638.366293
2020	8014044231.285417
2021	8627211145.232025
2022	11526284114.315828
2023	13295694393.961895