Year	current international $
1990	23650
1991	24100
1992	25090
1993	25910
1994	27250
1995	28450
1996	29870
1997	31510
1998	33120
1999	34730
2000	36810
2001	37720
2002	38440
2003	39780
2004	42080
2005	44570
2006	47160
2007	48330
2008	48420
2009	47060
2010	49090
2011	50910
2012	53020
2013	54230
2014	56490
2015	58020
2016	58760
2017	61010
2018	63900
2019	66280
2020	64790
2021	71610
2022	77790
2023	82190