Year including construction (current LCU) 1971 2432000000 1972 2703000000 1973 3117000000 1974 3652000000 1975 3913000000 1976 4932000000 1977 5580000000 1978 6234000000 1979 7168000000 1980 8331000000 1981 10567000000 1982 12256000000 1983 13319000000 1984 14968000000 1985 16255000000 1986 18202000000 1987 18771000000 1988 19477000000 1989 20560000000 1990 20201000000 1991 19741000000 1992 20335000000 1993 21960000000 1994 24043000000 1995 24755000000 1996 25338000000 1997 26007000000 1998 25435000000 1999 27240000000 2000 28270000000 2001 29745000000 2002 32252000000 2003 33608000000 2004 36402000000 2005 39010000000 2006 39553000000 2007 42877000000 2008 44023000000 2009 41591000000 2010 43059000000 2011 44724000000 2012 45507000000 2013 47229000000 2014 51878000000 2015 54032000000 2016 54512000000 2017 59487000000 2018 62220000000 2019 65502000000 2020 64878000000 2021 68025000000