3x3: 10.8 -> 6.5 (-40%)
2x2: 3.2 -> 1.4 (-56%)
4x4: 51 -> 36 (-29%)
5x5: 1:56 -> 1:15 (-35%)
6x6: 4:15 -> 2:20 (-45%)
7x7: 9:50 -> 4:10 (-55%)
3BLD: 2:30 -> 1:20 (-47%)
OH: 20.1 -> 13.6 (-32%)
Clock: 8.6 -> 4.6 (-47%)
Megaminx: 2:20 -> 58 (-61%)
Pyraminx: 6.8 -> 2.6 (-62%)
Skewb: 5.3 -> 3.4 (-36%)
Square-1: 16 -> 10 (-38%)
FMC, 4BLD, 5BLD, MBLD never completed back in january
Lowest decrease to highest:
4x4, OH, 5x5, Skewb, Squan, 3x3, 6x6, Clock, 3BLD, 7x7, 2x2, Mega, Pyra