Year	including construction (constant 2015 US$)
1991	24147.476542055763
1992	23718.13188473235
1993	24067.606713143003
1994	24036.25994655479
1995	24396.421630377998
1996	25564.18180033241
1997	24899.75643693134
1998	23259.32802026005
1999	22736.61207519355
2000	25052.063939588857
2001	23410.87054014751
2002	25252.199238878853
2003	25048.911192606407
2004	22865.3955213034
2005	23532.735685653104
2006	23411.559568637607
2007	20765.28021551477
2008	20908.59646289387
2009	21977.662677319655
2010	21939.71898970489
2011	22168.520134488474
2012	21238.34105322567
2013	21987.91888885698
2014	22842.108298845335
2015	23024.910354453994
2016	23289.995758228
2017	23467.063093638546
2018	24806.77334290037
2019	24196.46740516273
2020	23786.526736893553
2021	23427.772079408755
2022	24496.02054556165