Year	current international $
1990	34680
1991	39010
1992	39550
1993	38290
1994	37520
1995	37650
1996	38140
1997	38240
1998	38820
1999	36900
2000	38270
2001	37510
2002	36200
2003	39930
2004	43660
2005	46410
2006	47860
2007	48550
2008	50690
2009	48370
2010	49340
2011	54310
2012	55940
2013	54950
2014	55320
2015	48920
2016	45730
2017	47190
2018	49360
2019	47610
2020	40430
2021	48460
2022	54720
2023	55290