Year	including construction (constant 2015 US$)
1995	34299683432.127323
1996	33885693106.2742
1997	34559980703.832405
1998	36282501685.5535
1999	39780566160.525764
2000	41184122157.4242
2001	44027720482.62927
2002	46248578069.66169
2003	50129146004.16404
2004	51052021074.37967
2005	49442034656.616
2006	53777373063.26639
2007	52737173661.94451
2008	46070683210.83045
2009	45857238449.47069
2010	39379884441.79569
2011	34704674498.9246
2012	32670569012.129284
2013	30548816445.026157
2014	28596987996.148033
2015	28372790945.36522
2016	28991562955.92811
2017	28357720431.77186
2018	29406025934.27264
2019	29797257931.71327
2020	29713585126.579674
2021	33423215957.58788
2022	32275989614.297646
2023	32819834000.330845