Year	current US$
1991	134748801.356727
1992	95584906.0386151
1993	99180513.7739878
1994	101717753.513925
1995	106584351.438968
1996	143867347.568882
1997	174404662.660365
1998	82153240.2944099
1999	118807943.256804
2000	130142073.298044
2001	141422415.713787
2002	156578313.854378
2003	211020493.765866
2004	282721759.911077
2005	348562885.076102
2006	343405944.215143
2007	412610289.194013
2008	518272947.581544
2009	525214617.412233
2010	502860074.773635
2011	684421773.742936
2012	815394431.197265
2013	910066321.907646
2014	942262424.318161
2015	842014971.054338
2016	629540722.951274
2017	690761194.010157
2018	783276192.589287
2019	813106139.97183
2020	739314223.872454
2021	831109940.464677