Year	current international $
1990	1620
1991	1490
1992	1490
1993	1500
1994	1590
1995	1630
1996	1710
1997	1800
1998	1970
1999	1990
2000	2040
2001	2030
2002	1850
2003	1910
2004	1980
2005	2070
2006	2310
2007	2370
2008	2610
2009	2550
2010	2570
2011	2660
2012	2580
2013	2730
2014	2850
2015	2820
2016	2920
2017	3030
2018	3190
2019	3640
2020	3330
2021	3440
2022	3700
2023	3770