Year	constant 2015 US$
1993	4508.371695080417
1994	3986.858432098832
1995	3730.1786274651727
1996	3795.3302074687244
1997	3908.95499200064
1998	3903.848515306419
1999	3979.839080767299
2000	4253.879097018099
2001	4904.468149720412
2002	5433.617734880707
2003	5846.354014204763
2004	6282.220221004923
2005	6553.576180763521
2006	6945.619487679642
2007	7353.167078381618
2008	7142.282820121911
2009	7563.670826719553
2010	7651.829466236737
2011	7774.344591341372
2012	8180.036383277531
2013	8968.276194610433
2014	9259.408222981201
2015	9848.510348527114
2016	9366.743205298986
2017	9431.779163346388
2018	9437.724136197257
2019	9699.385602901448
2020	9919.526660248619
2021	9538.942676170962
2022	9671.981665898997