Table:
text: 1985 Green Bay Packers season
Defensive
Defensive
Player Sacks INT_S Yards Average Long_
John Anderson 6.0 2 2 1.0 2
Robert Brown 3.0 0 0 0.0 0
Mike Butler 2.0 0 0 0.0 0
Mossy Cade 0.0 1 0 0.0 0
Alphonso Carreker 9.0 0 0 0.0 0
Mike Douglass 1.5 2 126 63.0 80t
Tom Flynn 0.0 1 7 7.0 7
Donnie Humphrey 2.0 0 0 0.0 0
Ezra Johnson 9.5 0 0 0.0 0
Mark Lee 0.0 1 23 23.0 23
Tim Lewis 0.0 4 4 1.0 4
Charles Martin 3.0 0 0 0.0 0
Mark Murphy 4.0 2 50 25.0 50t
Brian Noble 3.0 0 0 0.0 0

Question: What is the sum of the Green Bay Packers' 23 yarding averages from defensive end for the 1985 season?