Year	including construction (constant 2010 US$)
1992	28613.840941314
1993	21654.8264161846
1994	15771.0073902992
1995	13706.4997449184
1996	14305.1418661838
1997	16607.0807945479
1998	19356.749591981
1999	19670.0517637926
2000	17415.5602294836
2001	18407.5811990363
2002	18664.3857916092
2003	18089.6128927045
2004	20789.6673516977
2005	28978.8610742835
2006	41196.8610390191
2007	52331.9382265441
2008	57447.929150353
2009	58746.0973376677
2010	55029.6814423444
2011	49580.6279031001
2012	47438.6774005503
2013	48407.1319083746
2014	47844.8219942145
2015	46735.0674071356
2016	43117.0162291391
2017	40966.0158155912
2018	40488.2392229845