Year	current US$
1988	3700000.04768372
1989	11140000.3433228
1990	5949999.80926514
1991	26079999.9237061
1992	7210000.03814697
1993	23670000.0762939
1994	31709999.084472697
1995	22850000.3814697
1996	17479999.5422363
1997	26670000.0762939
1998	31319999.6948242
1999	34930000.3051758
2000	34900001.5258789
2001	33040000.915527303
2002	36360000.6103516
2003	57610000.6103516
2004	54000000
2005	95019996.6430664
2006	44310001.373291
2007	110819999.69482401
2008	117559997.558594
2009	58430000.3051758
2010	69089996.3378906
2011	15000000
2012	13340000.1525879
2013	4639999.8664856
2014	9409999.84741211
2015	3599999.90463257
2016	7849999.90463257
2017	16790000.915527303
2018	17860000.6103516
2019	13630000.1144409
2020	20170000.0762939
2021	9859999.65667725
2022	14529999.7329712