Year	including construction (constant 2015 US$)
1991	4439.344528629821
1992	4569.901002536956
1993	4731.265836339252
1994	4459.673744549497
1995	4254.086697149075
1996	3980.932906601868
1997	4516.853795062149
1998	4435.392640433119
1999	5600.127587481285
2000	5153.140809034846
2001	5056.198041542284
2002	5024.684922358588
2003	5285.096377603731
2004	5260.707221368791
2005	5173.248723399017
2006	5071.182292401615
2007	5528.710397500474
2008	5257.215581741981
2009	5705.036838087144
2010	6170.741201579173
2011	6724.200145989757
2012	6411.6588483375735
2013	6520.006918419013
2014	6991.778027547342
2015	7144.156700966073
2016	7169.147721192111
2017	7256.004617783121
2018	7556.7993633394535
2019	7914.499511067509
2020	8511.134627331568
2021	8588.02550891955
2022	7532.047852316464