Year	including construction (constant 2010 US$)
2001	23522580.4406782
2002	21459962.8340048
2003	22933787.6417358
2004	24265903.1387016
2005	25201605.84791
2006	26817849.0295966
2007	27587051.3724489
2008	29209266.1390648
2009	32001782.513712
2010	33624163.2254335
2011	35112794.6646028
2012	35819001.7970105
2013	38902627.8201141
2014	40217090.3633283
2015	42049335.3308831
2016	44627885.0340439
2017	46674466.8312421
2018	47219307.0597581