Year	including construction (constant 2010 US$)
1991	13433.0987900383
1992	13340.8806366505
1993	12723.6583115932
1994	12279.9814567549
1995	11825.9200043515
1996	11825.8763049854
1997	11836.2881869365
1998	11687.2301149875
1999	11267.3037581168
2000	11534.5728784784
2001	11574.1672660098
2002	12392.7186607266
2003	12819.9871700935
2004	12961.2977758046
2005	13190.3444256386
2006	12653.6076536474
2007	12812.4263258499
2008	12524.1007777676
2009	12167.3291879356
2010	12336.3868242306
2011	12286.5907386879
2012	12120.3987012336
2013	12078.9482620288
2014	11968.8914262101
2015	11568.6248183453
2016	11137.4725786342
2017	11085.9041035556
2018	11490.0867124527