Year	including construction (constant 2010 US$)
1991	22535.3097117278
1992	21736.4520255902
1993	21746.2941198457
1994	22094.9062228549
1995	22870.3884033823
1996	22582.8602761672
1997	22442.2608561468
1998	22872.1853509087
1999	22213.3797714769
2000	22514.893287526
2001	20765.3801077294
2002	19624.7699287327
2003	20093.7951582749
2004	20820.464290005
2005	20758.7860029968
2006	21814.3941066506
2007	22869.3751690776
2008	23276.7002559686
2009	22679.2537251527
2010	22073.7611174966
2011	22457.3771272662
2012	22321.9247622505
2013	23610.7674652962
2014	23835.3361022969
2015	23665.6924783307
2016	24336.4571152338
2017	23481.4357611374
2018	23348.365347752