Year	including construction (constant 2015 US$)
1991	19360.2375633426
1992	19221.2394438869
1993	19585.99701643582
1994	20382.63654610224
1995	19876.686599271557
1996	20683.48271993455
1997	21210.435856041026
1998	20908.053179553277
1999	20676.3505831193
2000	20928.24950671289
2001	20585.243353890175
2002	20127.415300363766
2003	20270.11729903132
2004	20852.905140605788
2005	20997.785328779228
2006	21364.067162128336
2007	21499.234129220375
2008	21417.19500037027
2009	20660.048894283093
2010	21772.736579427197
2011	22429.47772441443
2012	21817.22395316027
2013	22072.413801386
2014	21601.15861845754
2015	21459.405543812238
2016	21672.85860167745
2017	21726.278764759878
2018	21512.37203000242
2019	20978.548412296437
2020	21071.513655636267
2021	20885.030194991785
2022	20555.586237108877