Year	including construction (constant 2015 US$)
1991	9347.353229687884
1992	10020.106714283782
1993	9593.634680106343
1994	7993.961212070732
1995	6217.747927902934
1996	6830.461360438713
1997	6984.275479398602
1998	6696.206857718776
1999	6745.998795796591
2000	6129.5963340008475
2001	5501.4960149406525
2002	4897.743819893665
2003	4388.713109731595
2004	3889.0404521173255
2005	3700.0453093642313
2006	3681.601861936473
2007	3661.7892136731425
2008	3508.1401822318185
2009	3464.602827939843
2010	3217.1145950977993
2011	3057.6374257087705
2012	2994.8692774003
2013	2849.803417623335
2014	2835.4027150330926
2015	2364.669393607619
2016	2309.0519517678545
2017	2279.6889616979306
2018	2387.504753436574
2019	2450.6648878080064
2020	2473.477017688174
2021	2426.3325024121486
2022	2408.8745581733106