Year	constant 2015 US$
1995	2522.2060811120923
1996	2662.1825969971787
1997	2806.291166884076
1998	2905.4906074989553
1999	3003.5376042556372
2000	3178.529532136217
2001	3325.991040874457
2002	3509.219606782058
2003	3724.812310523263
2004	4014.5643806069615
2005	4310.517129704791
2006	4709.110900519764
2007	5199.239988758733
2008	5561.408628861422
2009	5809.064899558454
2010	6241.210709182778
2011	6655.908005396963
2012	7047.786689390382
2013	7396.3408536893285
2014	7780.111857074798
2015	8071.790582138493
2016	8371.252100907039
2017	8786.962693238198
2018	9189.005032596497
2019	9591.433095531285
2020	9581.325488620281
2021	10273.137347474134
2022	10574.734590495686