Table:
text: Yorkshire County Cricket Club in 2008
Statistics
Twenty20 batting statistics
Player Matches Innings Not_Out Runs High_Score Average Strike_Rate _100s _50s_
Anthony McGrath 9 9 2 392 72* 56.00 132.43 0 4
Jacques Rudolph 9 8 1 191 56 27.29 129.05 0 1
Darren Gough 9 4 3 26 20* 26.00 136.84 0 0
Gerard Brophy 9 9 1 177 57* 22.13 113.46 0 1
Andrew Gale 9 9 2 106 45 15.14 86.18 0 0
Michael Vaughan 7 7 0 104 34 14.86 138.67 0 0
Craig White 2 2 0 26 26 13.00 92.86 0 0
Tim Bresnan 9 8 3 58 15 11.60 85.29 0 0
Chris Taylor 2 2 1 10 10* 10.00 111.11 0 0

text: Yorkshire County Cricket Club in 2008
Statistics
Twenty20 batting statistics
Player Matches Innings Not_Out Runs High_Score Average Strike_Rate _100s _50s_
Simon Guy 4 2 0 11 7 5.50 78.57 0 0
Richard Pyrah 9 5 2 16 8 5.33 114.29 0 0
Adil Rashid 8 6 2 18 10 4.50 94.74 0 0
Adam Lyth 1 1 0 0 0 0.00 0.00 0 0
David Wainwright 2 1 1 3 3* N/A 33.33 0 0
Matthew Hoggard 9 0 0 0 0 N/A N/A 0 0
Azeem Rafiq 1 0 0 0 0 N/A N/A 0 0

Question: What was the combined batting average of Craig White, Richard Pyrah and Adam Lyth for Yorkshire County Cricket Club in 2008?