Year	including construction (constant 2015 US$)
1991	18560.249692486417
1992	19076.852932645936
1993	19747.85585131807
1994	20862.01133980185
1995	23321.596671775747
1996	25286.69556510993
1997	25030.98256098665
1998	23448.94815729203
1999	24782.58426481385
2000	26182.07981070631
2001	24109.091929062168
2002	25250.424543910653
2003	26343.097956302976
2004	29068.49882681536
2005	29485.616290372716
2006	29259.178320320065
2007	30383.239128287296
2008	29250.640662166275
2009	28072.829723061757
2010	27934.782848925348
2011	27314.831078568095
2012	27518.86071029795
2013	26877.917683406762
2014	27823.45382897518
2015	28882.094727823856
2016	29720.1958152212
2017	30429.375061407467
2018	30492.971427906752
2019	30422.471430431026
2020	28528.273715350177
2021	28991.86468429403
2022	30548.97369331666