Year	constant 2015 US$
1996	1470.6002930012328
1997	1498.9398219641798
1998	1382.4122273962469
1999	1351.52246711078
2000	1409.1279369979213
2001	1533.1339924353344
2002	1691.684425608231
2003	1836.2302431285239
2004	2008.1485073468173
2005	2158.0706260940974
2006	2235.068986349121
2007	2262.588158202602
2008	2448.935937344234
2009	2226.534281759972
2010	2428.7174896061683
2011	2564.741353841084
2012	2609.7913599745402
2013	2848.2044422370827
2014	2975.1005866449773
2015	2908.0434334120837
2016	3073.022959422493
2017	3266.4483375839914
2018	3424.8114633765313
2019	3621.4903872650025
2020	3301.0611710554317
2021	3762.097437684426
2022	3597.0800427498716
2023	3733.6737635858562