Year	including construction (constant 2010 US$)
1991	18885.0616323866
1992	19107.5814331736
1993	19296.8430173087
1994	18698.6968939044
1995	18708.4862226635
1996	18916.7758047419
1997	19811.237967257
1998	21332.2430030575
1999	22968.288308158
2000	24045.8981989486
2001	23466.94947943
2002	23523.8799034285
2003	22599.6179951218
2004	22963.8675894222
2005	22577.5055711109
2006	22318.9001043601
2007	22691.5016483123
2008	23154.577076136
2009	22613.9523586065
2010	22801.6948622549
2011	23367.8863086959
2012	21635.5304944329
2013	21061.4781648834
2014	21544.4072720298
2015	21723.6120803397
2016	24264.1071566151
2017	23928.8507062884