Year	including construction (constant 2010 US$)
1991	319233.621375535
1992	324963.225760386
1993	314365.865817278
1994	318989.435373065
1995	320759.98872412
1996	329884.920427537
1997	302398.983627011
1998	296583.53988704
1999	307640.553314704
2000	307650.694996719
2001	306171.585177066
2002	316769.348928795
2003	323893.138056226
2004	319117.633329934
2005	310055.427443221
2006	318544.309459713
2007	300273.708238583
2008	279790.490376128
2009	267284.387057055
2010	272537.191512717
2011	276944.651975479
2012	271305.2071357
2013	255431.911509811
2014	244369.744901898
2015	254840.737418584
2016	259937.181743937
2017	274218.984588506
2018	270696.720354211