Year | Total length in use | Under construction, planned year of first operation |
---|---|---|
1981 | 451 | 0 |
1983 | 567 | 0 |
1984 | 641 | 0 |
1985 | 643 | 0 |
1986 | 643 | 0 |
1987 | 643 | 0 |
1988 | 733 | 0 |
1989 | 1024 | 0 |
1990 | 1024 | 0 |
1991 | 1133 | 0 |
1992 | 1628 | 0 |
1993 | 1749 | 0 |
1994 | 2343 | 0 |
1995 | 2447 | 0 |
1996 | 2447 | 0 |
1997 | 2447 | 0 |
1998 | 2708 | 0 |
1999 | 2708 | 0 |
2000 | 2708 | 0 |
2001 | 2967 | 0 |
2002 | 3229 | 0 |
2003 | 3943 | 0 |
2004 | 4264 | 0 |
2005 | 4285 | 0 |
2006 | 5184 | 0 |
2007 | 5480 | 0 |
2008 | 5750 | 0 |
2009 | 6126 | 0 |
2010 | 6602 | 0 |
2011 | 6830 | 0 |
2012 | 6879 | 0 |
2013 | 7343 | 0 |
2015 | 7343 | 210 |
2016 | 7343 | 673 |
2017 | 7343 | 971 |