Year	including construction (constant 2015 US$)
1995	36965974940.33319
1996	39711882874.54452
1997	42241150650.27108
1998	43948906234.44374
1999	44857295504.35937
2000	46667973942.31796
2001	47653418882.487495
2002	46778725519.06015
2003	45837252793.77187
2004	46238650148.31641
2005	45088103032.94453
2006	45312139204.35819
2007	46266118358.9496
2008	45042121490.218346
2009	41288923416.53397
2010	41943132159.31054
2011	41225062073.57538
2012	38823120887.66405
2013	37967048479.08006
2014	38019928972.96014
2015	38810823046.784355
2016	39293600952.83045
2017	40921274115.58357
2018	42710234948.22107
2019	43268967887.733574
2020	40704034820.13787
2021	43214427562.569115
2022	44008037723.949585
2023	43509088667.52264