Year	current US$
2000	240.42393082
2001	276.70888351
2002	299.17860291
2003	352.78151878
2004	398.20188605
2005	495.83968318
2006	616.62257377
2007	708.10406656
2008	647.61938468
2009	643.58444197
2010	796.25281364
2011	868.13764762
2012	880.49760924
2013	958.30597482
2014	1057.6473477
2015	1066.75515566
2016	1131.52743214
2017	1264.14070785
2018	1435.04797708
2019	1508.44475634
2020	1584.49183748
2021	1988.89723887
2022	1919.51718595