Year	including construction (constant 2015 US$)
1991	3789.260205530829
1992	3990.8027237496667
1993	4038.8214279042013
1994	3787.5702897381693
1995	3858.0807720422426
1996	3758.7254307332746
1997	3814.0824885290976
1998	3793.380558037607
1999	3804.254892439874
2000	4095.664452472974
2001	4140.119416338495
2002	4181.560347698458
2003	4199.630511861765
2004	4161.325039115383
2005	4002.25193861897
2006	3844.3871326442236
2007	3648.9157743984197
2008	3618.0454365728738
2009	3315.891691290772
2010	3532.1389019930493
2011	3404.293575934508
2012	3244.5507787498336
2013	3198.1773302645006
2014	2926.8401682563353
2015	2970.687085465247
2016	3149.931806248848
2017	3114.1503978056494
2018	3249.455403643802
2019	3460.450358451329
2020	3327.90690859098
2021	3341.809935597692
2022	3214.513086487305