Year	constant 2015 US$
1995	374.3488604683896
1996	384.3958043882789
1997	396.1840439588698
1998	403.8498127583545
1999	441.7440143197158
2000	474.771068990743
2001	503.01429448412546
2002	522.003051091816
2003	559.7262128727905
2004	605.3534086604822
2005	669.5586714353432
2006	730.1398653102207
2007	795.9537824202685
2008	829.5359319347916
2009	815.0704065068278
2010	859.6256184486773
2011	900.1129245080344
2012	943.8594007112922
2013	991.775218913406
2014	1047.6516294234725
2015	1106.1282211890625
2016	1170.1761853670685
2017	1236.6690895683475
2018	1305.863331757177
2019	1374.2655012264534
2020	1345.8109236724345
2021	1348.839693014623
2022	1405.8037076461103
2023	1502.9603989614648