Year	current international $
2000	2139
2001	2248
2002	2493
2003	2583
2004	2687
2005	2702
2006	2768
2007	2839
2008	2997
2009	2996
2010	2654
2011	2684
2012	2744
2013	2911
2014	3044
2015	3206
2016	3527
2017	3760
2018	3945
2019	4232
2020	4348
2021	4766