Year	constant 2015 US$
1993	2920.7199412158157
1994	3009.9419657513204
1995	3219.672130282594
1996	3587.9805033445746
1997	4110.120416283632
1998	4298.954635011373
1999	4302.776996318293
2000	4583.389781178023
2001	4933.15065350538
2002	5443.778525159889
2003	6010.101624166379
2004	6538.0409543308015
2005	7215.277945074768
2006	8192.394361398123
2007	8923.704395963881
2008	8542.2941617927
2009	7365.119856220879
2010	7288.203291038542
2011	7534.831385710388
2012	7892.044336004536
2013	8213.149143909573
2014	8532.005537763003
2015	8943.787774624183
2016	9339.151620747143
2017	9557.200210729827
2018	9982.9747918618
2019	10409.308596936466
2020	10252.933680687664
2021	11173.123061123408
2022	11241.868492549607
2023	10736.544691448744