Year	including construction (constant 2010 US$)
1991	5505.61949791406
1992	5161.77204155255
1993	4859.31478618561
1994	4519.66242948298
1995	4430.5129752088
1996	4461.09385448783
1997	4489.61044725863
1998	4587.12030134088
1999	4687.68036634933
2000	4907.90757983839
2001	4873.5455247708
2002	4811.09190122703
2003	4830.85929320234
2004	4879.05278084918
2005	4967.63219187411
2006	4781.6088318988
2007	4880.36024028189
2008	4981.94601393625
2009	4990.62352527883
2010	5086.93695820324
2011	5098.37877518978
2012	5110.76602190265
2013	5283.52953985998
2014	5279.13277486739
2015	5225.46791639707
2016	5280.95977657558
2017	5375.4297206635
2018	5431.12420599437