Year	including construction (constant 2015 US$)
1991	6649.632503545337
1992	6913.069949269344
1993	6672.153527581514
1994	6565.604093219587
1995	6717.741569580743
1996	6855.354179263887
1997	6941.962241762743
1998	7235.673454599494
1999	7116.904002521502
2000	7455.641603019186
2001	7584.547097798209
2002	7485.242821764589
2003	7059.925667997466
2004	6817.149170135661
2005	6329.242087716546
2006	5975.795560355369
2007	6080.134329688292
2008	5818.9784544666145
2009	5928.681880807691
2010	5802.5109220854465
2011	6100.644013326136
2012	5996.203960537288
2013	6081.50669174686
2014	6136.3941917407865
2015	6577.564422916352
2016	6138.146719953953
2017	6487.873981773545
2018	5882.341033331445
2019	5414.8816041789905
2020	5122.233025669335
2021	5076.827591691922
2022	5009.155838627039