Year	current international $
1990	1350
1991	1400
1992	1430
1993	1460
1994	1450
1995	1460
1996	1470
1997	1510
1998	1530
1999	1590
2000	1660
2001	1740
2002	1650
2003	1780
2004	1950
2005	1900
2006	1890
2007	1950
2008	2050
2009	2130
2010	2210
2011	2000
2012	2000
2013	1940
2014	1870
2015	1920
2016	1950
2017	1970
2018	2200
2019	2330
2020	2440
2021	2640
2022	2930
2023	3120