Year	including construction (constant 2015 US$)
1991	4390.13309523467
1992	4169.827310661415
1993	4031.0349761136263
1994	3970.987881175949
1995	4154.50036909888
1996	4558.944522086033
1997	4601.682922662926
1998	4405.004055037615
1999	4672.29357062593
2000	4325.605596266073
2001	4157.771634983445
2002	4791.797314701659
2003	4724.087859712871
2004	4980.403650853441
2005	5282.958145844504
2006	5527.903489348066
2007	5781.71370452531
2008	6129.99687613486
2009	6111.4043181447705
2010	6216.273473687875
2011	6104.308910729472
2012	5760.351859358274
2013	5751.962048911623
2014	5889.133246817439
2015	5877.733179910162
2016	6052.619857597646
2017	6203.2787160784865
2018	6329.061970957862
2019	6426.758469732668
2020	6217.206722422493
2021	6258.703467043268
2022	6393.92062356297
