# Years Size Links
UNKNOWN 1989–1989 24.5%
In 1958–2011 75.5%
node 1994–1994 100.0%
Ot 1961–1996 43.5%
DP 1958–2011 47.3%
FDC 2006–2011 13.0%
KY 1962–1962 25.6%
NRM 1996–2011 72.1%
UNC 1958–1962 50.0%
UPC 1962–2011 51.8%
UPC 1961–2006 38.5%