Year	current international $
1990	8350
1991	9470
1992	10170
1993	11020
1994	12160
1995	13450
1996	14640
1997	15640
1998	14780
1999	16620
2000	18410
2001	19590
2002	21320
2003	22020
2004	23730
2005	25010
2006	26810
2007	28990
2008	29950
2009	29460
2010	31780
2011	32750
2012	33910
2013	34460
2014	35500
2015	38020
2016	39720
2017	41120
2018	43220
2019	44240
2020	45540
2021	49120
2022	52380
2023	55040