Time limit 10 min: 39% (47)

Time limit 15 min: 35% (42)

Time limit 12 min: 13% (16)

a time limit+frag difference formula: 7.5% (9)

Time limit based on map: 2.5% (3)

Time limit 12.5 min: 2.5% (3)

As requested by user ABSVRD, and some possibilities raised in the discussion thread.