Coming off their road win over the 49ers, the Saints went home for a Week 9 interconference duel with the Jacksonville Jaguars.  In the first quarter, New Orleans drew first blood as kicker Olindo Mare managed to get a 46-yard field goal, while RB Reggie Bush got a 1-yard TD run.  The Jaguars would respond with QB Quinn Gray completing an 80-yard TD pass to WR Reggie Williams, along with former Saints kicker John Carney getting a 30-yard field goal.  New Orleans would respond with QB Drew Brees completing a 2-yard TD pass to Bush.  However, Jacksonville immediately answered as RB Maurice Jones-Drew returned a kickoff 100 yards for a touchdown to end the period.  In the second quarter, the Saints regained the lead as Brees completed an 8-yard TD pass to WR Lance Moore for the only score of the period. In the third quarter, New Orleans increased its lead with CB Mike McKenzie returning an interception 75 yards for a touchdown, while Brees completed a 4-yard TD pass to WR David Patten.  In the fourth quarter, the Jaguars tried to come back as Gray completed a 15-yard TD pass to WR Dennis Northcutt.  Fortunately, the Saints closed out the game with Mare nailing a 34-yard field goal.
Question: How many more yards was Mare's longest field goal over his shortest one?
Answer: 12