Year	including construction (constant 2010 US$)
1991	2189.14649892429
1992	2169.53095828094
1993	2177.31972067322
1994	2130.67438315952
1995	2138.98482300223
1996	2144.68200234495
1997	2174.08987034465
1998	2216.30704021412
1999	2243.90997978104
2000	2307.27334663365
2001	2367.13029749591
2002	1977.24678611363
2003	2136.48726937352
2004	3172.3845008374
2005	4481.019659524
2006	4164.54259203209
2007	3999.5700653585
2008	3685.04286564232
2009	3021.46685001231
2010	2518.60364392688
2011	2164.64317050687
2012	2062.03090068047
2013	2328.86591968654
2014	2551.3764801754
2015	2672.93623792996
2016	2863.38884495724
2017	2961.05224898896