Year	current US$
1980	31039896.62906201
1981	28207466.793123953
1982	29522062.727416176
1983	33836860.21979824
1984	39859774.84168872
1985	40877614.95704901
1986	37417829.57557205
1987	35506692.898198515
1988	35814976.457351014
1989	54173985.3933623
1990	48790241.95160968
1991	34081665.75669367
1992	36082915.545875825
1993	38647844.25374604
1994	40256594.19268508
1995	54676528.507333554
1996	65839432.44371595
1997	80243357.76167434
1998	73658428.81973583
1999	76022934.90149489
2000	110298686.48438345
2001	117406675.57403281
2002	126907210.79201312
2003	145438436.67183277
2004	167930125.70904964
2005	205306238.8357363
2006	218354741.0590432
2007	261677965.69711432
2008	272864040.13057476
2009	309305183.66937214
2010	362596075.93190473
2011	418037385.3983505
2012	400301415.3071885
2013	356907323.1276679
2014	378685630.69337237
2015	418615529.4062484
2016	426830365.38575244
2017	471241102.9285858
2018	477786001.7537496
2019	523001017.561105
2020	548423177.6954918
2021	627749287.5789288
2022	609130081.3842813