Year	including construction (constant 2010 US$)
1991	2713.22175731102
1992	2574.03487070387
1993	2304.7489698799
1994	2039.64556371133
1995	2168.07273308256
1996	1949.32170634429
1997	2269.94318045156
1998	2450.89516204417
1999	2710.07373888267
2000	2948.49073354822
2001	3343.58534706853
2002	3638.14881376714
2003	3916.39726785846
2004	4124.1753964883
2005	3941.475023557
2006	3775.55086706681
2007	3668.62018650431
2008	3520.34252252023
2009	3441.99816276641
2010	3299.24949212007
2011	3171.5431707628
2012	3088.36495893687
2013	3022.46707399687
2014	2918.42503228782
2015	2963.27350845881
2016	3033.45845447807
2017	3115.73440319732
2018	3109.61876011423