Year including construction (constant 2015 US$) 1977 3955042951.4808116 1978 3967753797.624152 1979 3912820020.9814477 1980 3670951630.4113436 1981 3533469506.7341075 1982 3148509824.9577804 1983 2823932651.571643 1984 2918066836.827482 1985 2962360447.595479 1986 3205966319.6047363 1987 3181086935.384526 1988 3466455965.1542573 1989 3539343023.319195 1990 3500645734.0160637 1991 3533324316.119598 1992 3473906911.430409 1993 3450788092.721026 1994 3595886522.10362 1995 3661511127.1294794 1996 3862305574.7065187 1997 4252753629.2615604 1998 4409386547.17547 1999 4328825255.416814 2000 4675634638.738874 2001 4614889990.361333 2002 4645880703.065228 2003 4795175845.6223545 2004 4952493913.078014 2005 5360063418.463374 2006 5636277667.286823 2007 5496496080.53444 2008 5809923936.536069 2009 5427684836.304284 2010 5494454009.902387 2011 5649803255.5562725 2012 5584770404.330158 2013 5689975635.356711 2014 5771864851.901203 2015 5697010884.253272 2016 6055868607.974262 2017 6180997443.045528 2018 6225402098.092463 2019 6309932196.31198 2020 7834497072.003523 2021 8930724841.21249 2022 13776856756.188234