Year	including construction (constant 2010 US$)
1991	16073.3694636379
1992	15802.1943266763
1993	15479.9059670964
1994	18250.2389011705
1995	19000.0790530727
1996	19180.9750206887
1997	22910.4378657735
1998	23297.1882088489
1999	23744.2437900259
2000	24495.7741505281
2001	24279.21388693
2002	24489.734261072
2003	24964.4667634695
2004	25496.0447054988
2005	25620.100895728
2006	26087.8754710108
2007	27139.9636276732
2008	27062.8274071028
2009	25826.6406309783
2010	27435.3898324115
2011	27662.0154622424
2012	27652.6087428565
2013	27889.5364328516
2014	28155.5518453297
2015	28503.4100372864
2016	29078.956407516
2017	29793.9734866182
2018	24887.0326882075