Year	current US$
1970	181.79845837191095
1971	194.60057415234522
1972	215.73604239622009
1973	274.81433941145247
1974	330.8481841819276
1975	357.3133996800694
1976	375.6811700108644
1977	411.3239313066262
1978	428.20168431172334
1979	487.16544680158904
1980	545.6610419059958
1981	599.045369159937
1982	579.648618818492
1983	555.3750541628751
1984	570.9391063897825
1985	579.4392942774999
1986	597.6108549086837
1987	576.822433523493
1988	626.779381665763
1989	677.7692053735051
1990	794.0211090760408
1991	846.6639695344676
1992	919.8349577066837
1993	1033.583191678297
1994	1164.4761105256378
1995	1312.5135721780819
1996	1436.3917294174012
1997	1509.5410877505108
1998	1464.556296278897
1999	1390.9187291610642
2000	1494.301610361993
2001	1473.3985579289747
2002	1477.0219054802358
2003	1628.5762618112271
2004	1885.7925157819536
2005	2199.650365573912
2006	2578.3317123334778
2007	3155.963975974122
2008	3713.680828587733
2009	3712.773227694011
2010	4418.983278595124
2011	5117.181188260184
2012	5459.513308406486
2013	5719.364204549241
2014	5908.77116961633
2015	5662.52376853861
2016	5642.485733219113
2017	6152.520110824053
2018	6385.21368722609
2019	6437.034952457286
2020	6131.0336233350545
2021	7146.930671361923