Year	including construction (constant 2015 US$)
1991	15319.414893374078
1992	15531.729201362277
1993	14386.993213955786
1994	13500.150354952491
1995	12970.22935044326
1996	13216.818649072917
1997	13136.565538919815
1998	12959.886433551676
1999	12162.371775164942
2000	12153.989327923066
2001	12231.26214894592
2002	11856.477224704306
2003	12423.893447138878
2004	12333.24988896656
2005	12392.648919535732
2006	11776.371041067092
2007	11474.466787004178
2008	11101.471448566948
2009	11058.788917231543
2010	11117.49636235234
2011	11764.378836871694
2012	11578.345806600511
2013	11251.269973322418
2014	11096.617536955755
2015	10439.884342926203
2016	9645.426858086694
2017	9547.934171639643
2018	9439.80772854011
2019	9414.433049312425
2020	8764.33638282502
2021	8423.58789863962
2022	7912.376068314429