Year	including construction (constant 2010 US$)
1993	18355.9902053604
1994	18684.1217391862
1995	20542.9814058614
1996	22138.3812830275
1997	21418.0297015343
1998	21170.9404987727
1999	22000.994646836
2000	23521.7326846942
2001	23625.3661328353
2002	24365.1323833172
2003	25114.7877672059
2004	27913.1309330666
2005	30154.4356483089
2006	33519.648656399
2007	34413.1388638221
2008	35916.2573240737
2009	34451.3030097561
2010	37378.8383063038
2011	38268.6049837211
2012	37334.4110364852
2013	36226.0541170529
2014	37014.8338146162
2015	38021.2248530535
2016	37550.0798443452
2017	39557.0076271274
2018	40259.2500238947