Year	including construction (constant 2015 US$)
1991	7997.732162946012
1992	7995.220018632169
1993	7542.7135787242505
1994	7163.555584833409
1995	6916.969957864772
1996	6974.919724126268
1997	6939.032922274054
1998	6927.487064198197
1999	6645.243741458446
2000	6646.712476157058
2001	6690.403458969059
2002	6635.581383922226
2003	6947.69327643901
2004	7189.782167307196
2005	7332.096463080473
2006	7305.158098279742
2007	7170.063373814183
2008	7276.222943393654
2009	7025.6319331018685
2010	7199.223848864275
2011	7392.437549970724
2012	7332.4781161488745
2013	7100.349007731556
2014	7326.916777796831
2015	7098.879227646262
2016	6853.772407095017
2017	6843.554042363959
2018	6873.103976959322
2019	6894.503203821103
2020	6485.147205484797
2021	6341.0404214826085
2022	6166.080255278986