Year	including construction (constant 2010 US$)
1991	6052.09063908579
1992	5705.75600510911
1993	5331.34582359394
1994	4644.16668547035
1995	4267.21803761012
1996	4801.32467179052
1997	5155.75847677436
1998	5501.47161059957
1999	5822.10935172393
2000	6042.45499624315
2001	6250.5874965199
2002	6613.8130747938
2003	7207.24968109563
2004	8423.48011055117
2005	9427.3084948887
2006	10600.4627247962
2007	11417.8723313251
2008	12996.4035365285
2009	12966.5469120299
2010	14452.8704282929
2011	15575.2424407248
2012	15867.1449105511
2013	15476.9222768053
2014	15711.6999167729
2015	14668.0902440458
2016	13793.8118381482
2017	14713.3266352137
2018	15598.6971864053