Year	including construction (constant 2010 US$)
1991	21784.0738114172
1992	21494.4337470646
1993	20923.0019466379
1994	21653.7004061882
1995	20090.2456853544
1996	20337.071467273
1997	21294.975820261
1998	21108.0492817233
1999	21797.2462930333
2000	23179.3188665264
2001	23044.0681922718
2002	24000.3322098513
2003	27430.1599493369
2004	27441.2005725762
2005	28969.9512466025
2006	31309.3104113513
2007	30667.8919761904
2008	31571.9544549421
2009	30997.4219006886
2010	32027.9552864194
2011	32394.2682776149
2012	31818.4968390625
2013	31990.3483064619
2014	31497.824938927
2015	30594.7876080212
2016	28936.5476229332
2017	29028.6377668982
2018	31859.4672235629