Year including construction (constant 2015 US$) 1965 1139488529.3640134 1966 1199520954.5234914 1967 1215103618.365838 1968 1361408936.096402 1969 1450367050.7160556 1970 1431466184.2295837 1971 1604059130.5729196 1972 1549092089.3143415 1973 1613884741.9200957 1974 1701365389.063047 1975 1763508358.955781 1976 1898885967.835508 1977 2247085195.6268835 1978 2481727077.465582 1979 3565240310.42058 1980 3880996146.546189 1981 5071678325.114753 1982 5984120935.26183 1983 7081821584.36989 1984 7430291870.28539 1985 8072234760.162216 1986 8563988096.243755 1987 8608045102.332205 1988 7998067458.652376 1989 7814022360.628094 1990 7282668818.757342 1991 6802012914.950027 1992 6094603473.567207 1993 5488725015.133632 1994 5389514300.978914 1995 5090389695.752686 1996 5167409784.999174 1997 5137563437.639709 1998 5459164580.568347 1999 5582971114.441059 2000 5698836675.096402 2001 5805567573.62537 2002 6546866539.725992 2003 6607190686.669436 2004 7080174597.049553 2005 6878148816.200546 2006 7200579562.194935 2007 7081891328.902182 2008 7069201591.213922 2009 7011489928.954357 2010 6904006452.449981 2011 6799998280.628688 2012 7248620417.110742 2013 7473258627.33424 2014 7594739682.486254 2015 8082026755.398584 2016 8482352517.419697 2017 8601963936.046474 2018 8854219534.291931 2019 9187257076.082409 2020 9447213037.809984 2021 9823047410.924015 2022 10092075458.073414 2023 10475632849.262352