Year	current US$
1977	2340000.0166147933
1980	3680000.0499933977
1981	1469999.961555004
1982	1490000.024437904
1983	1689999.964088201
1984	1610000.0180304048
1985	1550000.0230967992
1986	1490000.0505149376
1987	460000.0102072949
1988	889999.9633431432
1989	520000.00514090096
1990	1209999.9859929082
1991	1619999.973103404
1992	799999.9858438964
1993	1159999.961033466
1994	1289999.9860674143
1995	1850000.0406056596
1996	2410000.016912817
1997	1740000.0244379048
1998	1469999.9745935192
1999	989999.9927729368
2000	710000.0064820049
2001	1299999.9858438973
2002	2089999.9774992454
2003	1739999.9760091305
2004	2389999.970793725
2005	1780000.0309944162
2006	1879999.965429306
2007	1979999.989271163
2008	2579999.953508377
2009	2319999.9928474417
2010	2349999.964237213
2011	2229999.989271163
2012	2347268.968820572
2013	2140094.0120220184
2014	2596336.7521762853
2015	2379933.327436447
2016	1748317.629098892
2017	1886218.5776233682
2018	2249490.022659302
2019	3677650.213241582
2020	4608310.043811806
2021	4208359.241485595
2022	4651839.971542362