Year	constant 2015 US$
1991	7939.849740190273
1992	8224.213056696139
1993	8307.708183778794
1994	8631.94775514023
1995	9053.597518836066
1996	9590.79342486621
1997	9728.353976502678
1998	9874.945455783496
1999	9810.686053563792
2000	9981.856943652489
2001	9513.013340701176
2002	9618.298307555551
2003	9496.529474111438
2004	9949.586743942862
2005	10147.05951892524
2006	10548.532739562039
2007	10954.915965950257
2008	10954.30945047775
2009	10619.767062580731
2010	10767.380920600595
2011	11080.865094006718
2012	11140.664759662473
2013	11283.663274066506
2014	11628.570315970772
2015	11765.759379147523
2016	11913.076945874811
2017	12206.62623361018
2018	12607.30830342334
2019	13058.621149802102
2020	13275.314527516606
2021	13933.911327291198
2022	14259.506732853779