Year	including construction (constant 2015 US$)
1991	15389.671845760438
1992	16309.058925920102
1993	16285.803964660125
1994	15942.724630311968
1995	16271.649615998003
1996	16448.15750550798
1997	17700.56467971934
1998	18378.250734161975
1999	20058.365197003335
2000	20260.592523381325
2001	20055.757644642723
2002	20188.833091380606
2003	19691.446333525004
2004	19758.40968351947
2005	19442.277054669827
2006	21285.94945353274
2007	21335.09895507644
2008	21492.155480916612
2009	20626.952392080464
2010	20410.647856614025
2011	19977.72952303129
2012	19934.712365004547
2013	18714.190211928864
2014	18758.83213979258
2015	18469.75571921865
2016	19605.2278244533
2017	19926.530928197266
2018	19598.625602177814
2019	18885.949486419475
2020	18064.70884397645
2021	18772.548804017268
2022	19282.161929118953