Year	constant 2015 US$
1991	683.5323146492308
1992	673.654294516722
1993	695.4525648922697
1994	668.0253852871612
1995	677.948303719735
1996	715.8204930701596
1997	727.2509460574258
1998	721.5404031774609
1999	728.7123223779053
2000	705.17581720056
2001	711.7674793263354
2002	714.0603561301531
2003	722.1783723969858
2004	704.4622005520223
2005	727.6468324772171
2006	771.8806669870601
2007	780.6685252806659
2008	837.7180332258218
2009	857.192785023838
2010	882.2413104929308
2011	885.6187171975953
2012	899.6015401374099
2013	902.3711525176216
2014	936.7779494459301
2015	952.2643343762168
2016	963.0240923462912
2017	996.9661566439503
2018	1005.7429031872812
2019	1016.4188948139501
2020	1027.8644805677948
2021	1032.6809776851708
2022	1042.7932391343304