Year	current USD
1981	2079250
1982	2576875
1983	2899750
1984	3256125
1985	3263000
1989	4355375
1990	4768750
1991	4732875
1992	5292125
1993	6130375
1994	7899375
1995	8052875
1996	7965875
1997	9395000
2000	7116125
2001	7454662.5
2002	7829937.5
2003	8552225
2004	9486150
2005	10710962.5
2006	12283037.5
2007	13759075
2008	18717737.5
2009	17267537.5
2010	15337250
2011	15416250
2012	15219125
2013	17778875
2014	19916875
2015	19717625
2016	21712887.5
2017	23055950
2018	23341162.5
2019	24424950
2020	26025325
2021	25152900
2022	23673550