Year	current US$
1977	6179999.917745586
1980	17049999.989569183
1981	16570000.097155571
1982	16910000.110045068
1983	18859999.96028841
1984	18569999.84011054
1985	19769999.936223023
1986	17470000.084489584
1987	18669999.953359358
1988	22999999.97764826
1989	28839999.92907047
1990	39260000.117123134
1991	35710000.03814699
1992	28759999.839589007
1993	31019999.8896569
1994	41999999.891966596
1995	56599999.690428376
1996	56759999.89360568
1997	63909999.82692301
1998	62730000.21278858
1999	50510000.00163911
2000	41980000.37670136
2001	66560000.09924172
2002	91289999.5148182
2003	84740000.42490664
2004	70399999.85694885
2005	70039999.96185304
2006	75249999.99999997
2007	87680000.36478041
2008	121249999.04632567
2009	120509999.09639359
2010	124190000.53405762
2011	116959998.90565872
2012	118691006.83927535
2013	117952123.70157243
2014	116102493.64376068
2015	111777042.6273346
2016	95497264.29581642
2017	81727426.23090741
2018	78811940.19317628
2019	110791452.46744154
2020	119153450.84667206
2021	125170876.02615355
2022	145115961.1940384