Table:
text: 2007–08 Plymouth Argyle F.C. season
Squad information
Squad information
Nat_ Name_ Since Goals Transfer_fee
FRA Larrieu 2000 0 Free
ENG McCormick 1999 0 Youth system
FRA Doumbe 2004 3 Free
NED Seip 2006 3 Free
HUN Timár 2007 (Winter) 4 £ 75k
ENG Sawyer 2004 0 Youth system
FRA Abdou 2007 1 Free
ENG Summerfield 2004 2 Youth system
HUN Halmosi 2007 (Winter) 7 £400k
NZL Fallon 2007 (Winter) 3 £300k
WAL Easter 2008 (Winter) 2 £210k
ENG Mackie 2008 (Winter) 2 £145k

Question: What's that since the year of the player in the 2007/08 season from Plymouth Argyle FC with a transfer fee of £75,000?

Question: What is that since the year for the player with over 3 goals and a transfer fee of £400,000 for Plymouth Argyle FC squad info for the 2007/08 season?

Question: What nationality is the player in £400,000 transfer fee at 2007-2008 Plymouth Argyle FC if squad info is available?

Question: What are the average goals scored by Sawyer from Plymouth Argyle FC in the 2007-08 season?