Year	current US$
1990	92251487.7229045
1991	86596082.5613388
1992	78632952.6246661
1993	69492479.3143968
1994	67682690.2313265
1995	50466102.2342206
1996	41046117.2107818
1997	40407040.7540664
1998	42211254.8572124
1999	32194310.5156556
2000	37097539.628371
2001	37224846.2675137
2002	35217015.9639166
2003	32810539.2812794
2004	35760766.1816527
2005	35952972.6456186
2006	36289269.3564641
2007	41313017.775781
2008	54427758.6101944
2009	53351909.434269
2010	59809766.9235885
2011	73854603.9092588
2012	80076404.9366018
2013	83088171.9892612
2014	81760035.0372224
2015	69476209.5766701
2016	77119329.7807896
2017	78710478.7151261
2018	80280204.1922211
2019	80173186.6368009
2020	80283691.4734378
2021	87926410.5957745