Year including construction (current LCU) 1978 21200000 1979 17212000 1980 2113000 1981 2371000 1982 2440000 1983 2661000 1984 1666000 1985 1977000 1986 2332000 1987 2426000 1988 1989000 1989 2208000 1990 2316000 1991 6829500 1992 5875400 1993 6594300 1994 6501300 1995 6600500 1996 6992900 1997 6937200 1998 10809600 1999 12408000 2000 12172300 2001 12753800 2002 12221800 2003 12283900 2004 11059600 2005 9909600 2006 14568200 2007 16646999.999999998 2008 18327200 2009 17546000 2010 20191200 2011 22596700 2012 25052700 2013 27749700 2014 28688100 2015 34682000 2016 37172400 2017 31629300 2018 29213300 2019 24026270.7281869 2020 25590422.9981758 2021 35039724.9524903