Year	including construction (constant 2010 US$)
1991	8695.99809824219
1992	8447.48424151944
1993	8383.33367376882
1994	8317.81893249467
1995	8470.00297413834
1996	8633.76600293656
1997	8958.11423221712
1998	9116.68311968749
1999	9352.37635610301
2000	9761.32898538799
2001	9910.45926598697
2002	10215.4095171851
2003	10591.4153827604
2004	11038.262748586
2005	11354.837896465
2006	11853.704025512
2007	12456.7664349247
2008	12884.8610096414
2009	12982.4840048013
2010	13723.8764279446
2011	14223.9783654038
2012	14481.9969120274
2013	14876.1969642938
2014	15141.1895805356
2015	15281.4878262619
2016	15876.3375854141
2017	16337.7973920049
2018	16794.5239442361