Year	including construction (constant 2015 US$)
1991	17728.832263900473
1992	21147.156716092115
1993	21229.12543462627
1994	21491.62163057055
1995	20491.856404865957
1996	18795.37009547746
1997	19407.771812558767
1998	19336.132314453673
1999	20220.460778175697
2000	20578.12066908715
2001	22180.138024978056
2002	24658.81725181112
2003	22581.121669742697
2004	22024.534438358867
2005	22910.80171202244
2006	23717.2798493352
2007	22761.556265623552
2008	24135.109625741934
2009	23119.509247969694
2010	23764.903277889163
2011	24861.999368490793
2012	25518.53599243606
2013	25496.288881509692
2014	24337.984853096466
2015	22822.367838330825
2016	22272.819957690732
2017	22738.76652471756
2018	23530.42155784141
2019	24527.82405195927
2020	24977.80340425728
2021	24824.17070301722
2022	24792.69924336596