Table:
text: 2007–08 FC Barcelona season
Squad information
Squad information
Nat_ Name_ Since Goals Ends Transfer_fee
FRA Thuram 2006 0 2008 €5M
MEX Márquez 2003 8 2010 €5M
BRA Sylvinho 2004 3 2008 €2M
BRA Edmílson 2004 0 2008 €10M
POR BRA Deco 2004 19 2008 €15M
BRA Ronaldinho ( VC1 ) 2003 89 2010 €30M
ISL Guðjohnsen 2006 13 2009 €12M
ESP Bojan 2007 10 2009 Youth system
MEX Giovani 2007 1 2009 Youth system
ESP Ezquerro 2005 7 2008 Free
ESP Pinto 2008 0 2008 loan

Question: What is the average ends with a since from 2003 and a name with Márquez for FC Barcelona squad information of the 2007/08 season?