Year	including construction (constant 2010 US$)
1991	11162.9018447361
1992	8118.69508328753
1993	6809.11594121984
1994	7584.23453535203
1995	9194.83884144616
1996	10271.9742751077
1997	10698.4937133037
1998	10882.3261633776
1999	12660.5435237364
2000	13430.339225586
2001	13034.3726056688
2002	12988.0210870109
2003	12864.0089157185
2004	13237.6144685261
2005	14080.8356889264
2006	15836.7440404561
2007	16130.2427765722
2008	16523.1391156033
2009	16774.2121085297
2010	17259.5872264404
2011	17437.0714728011
2012	16356.8072169283
2013	18844.2210360976
2014	18514.6224914553
2015	20116.7777561631
2016	19802.7621313761
2017	20309.8719021392