Year	including construction (constant 2015 US$)
1991	2926599924.887662
1992	3293471468.556178
1993	3616360953.9085784
1994	3905704625.5293407
1995	4090668696.5110207
1996	4568248593.840962
1997	4608523272.351373
1998	4757946096.040707
1999	4463205304.608175
2000	4427245824.433642
2001	4505363815.426207
2002	4694022311.007059
2003	4853417893.733225
2004	5154896650.144356
2005	5416226288.544293
2006	5405578504.93927
2007	6359184649.05466
2008	6945614758.074789
2009	7270046559.636681
2010	7718222508.614946
2011	7886495333.525039
2012	8024604908.007326
2013	8498035624.963221
2014	8266630876.679174
2015	7841494699.170813
2016	8019773056.50937
2017	7780977460.495372
2018	7475176704.105807
2019	6211540971.090408
2020	5810793094.675521
2021	5412478406.141932
2022	5382151800.468007
2023	5421728956.343046