Year	constant 2015 US$
2000	1011.1209188936836
2001	1036.7812498166786
2002	997.6463345097485
2003	675.3418991263063
2004	577.2731333598663
2005	578.7440083225207
2006	579.3349093157751
2007	602.5112762121539
2008	649.3607456364076
2009	1230.3435941593004
2010	1263.9767940132353
2011	1282.8004371296722
2012	1293.087916647652
2013	1352.0268600216932
2014	1310.6145417259966
2015	1329.4076432366771
2016	1380.5629315615147
2017	1424.448286778684
2018	1428.9885709595515
2019	1397.0828209272167
2020	1418.119414398132
2021	1406.076763002925
2022	1470.0579926983423