Year	current US$
1980	1895.4914954137291
1981	1903.681002269445
1982	1848.2614358538763
1983	1587.3589258424352
1984	1685.61249406093
1985	1638.1781418814053
1986	1933.192094894739
1987	2667.0560281916933
1988	2092.5208665327054
1989	2031.3107475762458
1990	1831.426779878724
1991	955.5230042655033
1992	1029.5110503922851
1993	1079.9213603372255
1994	1001.3334209618703
1995	2062.436164041924
1996	1321.4893144530092
1997	1231.0701941064967
1998	1600.716055526194
1999	1439.8227979383175
2000	1373.0151326003786
2001	1546.2450254776481
2002	1857.505325705367
2003	2371.187279167101
2004	2944.821165864471
2005	3338.7926535105107
2006	3734.941840053982
2007	4613.521830718147
2008	5971.7399879204195
2009	5759.802810826559
2010	5620.271104405471
2011	6408.162620132389
2012	6243.723978653957
2013	6422.010444937004
2014	6643.09588537673
2015	5819.877624434734
2016	6238.054936698405
2017	6970.955514489919
2018	7752.822897967669
2019	8165.632881196876
2020	8311.253957272214
2021	10114.523521391857