Year	including construction (constant 2010 US$)
1991	19709.6002921455
1992	20539.4473517247
1993	21313.2646431847
1994	22537.9812908223
1995	25316.9164426589
1996	27492.5188942062
1997	27238.8797537967
1998	25437.4757389238
1999	26811.5328673575
2000	28271.7651539771
2001	26217.450608543
2002	27527.4862755471
2003	28772.6765727305
2004	31812.5913162875
2005	32335.6934988123
2006	32301.0140325096
2007	33812.7354873053
2008	32754.3756500841
2009	31619.0335794653
2010	31398.7479411389
2011	29348.5198879859
2012	30175.4366784743
2013	30161.3281962113
2014	31443.2888199627
2015	32968.0438616119
2016	33897.369257875
2017	34928.5582833646
2018	35495.747415096