Year	current international $
1990	21150
1991	21730
1992	21290
1993	21820
1994	22730
1995	23180
1996	24070
1997	26130
1998	27960
1999	28850
2000	28840
2001	30880
2002	32470
2003	32140
2004	34060
2005	35840
2006	37310
2007	39560
2008	35660
2009	34990
2010	33710
2011	36170
2012	38330
2013	44090
2014	45410
2015	49110
2016	54530
2017	55910
2018	58160
2019	62220
2020	57640
2021	62050
2022	73180
2023	79290