Year	including construction (constant 2010 US$)
1991	27313.1045196596
1992	28915.7768132656
1993	28807.0738790085
1994	29880.3166639401
1995	30496.6736227871
1996	29426.3469099539
1997	29166.2788773666
1998	29633.1546381628
1999	30325.2251490261
2000	29671.7648696627
2001	29741.7472849999
2002	31533.3123891482
2003	33778.8801066098
2004	34391.8680455769
2005	34510.5029929524
2006	36923.1762164432
2007	38072.8338317277
2008	35947.4587570532
2009	33343.2280323026
2010	33591.5977120362
2011	29996.7035892379
2012	27482.7160130857
2013	26482.3684015853
2014	26336.1998817216
2015	27173.007670423
2016	28660.9698896307
2017	31832.919988923
2018	34819.1012348371