Year	constant 2015 US$
1991	3272.9628740774915
1992	3186.408987166058
1993	3184.9800940758073
1994	3339.4794974999195
1995	3486.052668292009
1996	3646.311088336782
1997	3525.6659454228343
1998	3743.5904576975727
1999	3748.877402644502
2000	3866.2726904940255
2001	3853.6785705499324
2002	3904.095519285659
2003	4126.273337526923
2004	4091.55565375071
2005	4177.714532765266
2006	4390.287860231035
2007	4743.995934782924
2008	4946.305104446725
2009	4632.155772079911
2010	5057.176942841706
2011	5196.221020036721
2012	5167.964239268995
2013	5499.486023243671
2014	5717.986725131794
2015	5884.16528699886
2016	5779.192516022477
2017	6117.192454250315
2018	6036.387762314848
2019	6280.74032580383
2020	6442.102969032318
2021	6374.9387473815295
2022	6428.6489911844465