Year	including construction (constant 2010 US$)
1991	15961.7585639486
1992	15744.8847852635
1993	15882.0760057825
1994	15570.2295582134
1995	14885.6572919289
1996	14120.3597053021
1997	15071.2043841749
1998	14824.0224261645
1999	14900.7405684936
2000	15546.4505350534
2001	15179.1971608326
2002	14745.6314625834
2003	14513.0088872868
2004	14202.8368702115
2005	14698.3629554561
2006	14202.3804931825
2007	13923.1411232608
2008	13836.0874124506
2009	12408.5985839352
2010	12344.8943762932
2011	12986.817809331
2012	13155.7041299136
2013	13315.9761732623
2014	13150.0645415889
2015	13163.186441394
2016	12334.70183736
2017	12014.4295921013
2018	12138.8095208987