Hi baner,
Sorry for the late response, but I didn't have a clue as to what kind of lottery the florida fantasy 5 was...
Based on draws since july 16th, 2001, I found the following sets in a sample of 200,000 random combinations.
Overall 15 number set:
02 03 05 07 16 19 20 22 25 27 28 31 32 34 36
0 : 017 (F18 - A28 = -10 ***)
1 : 048 (F7 - A4 = 3)
2 : 110 (F3 - A2 = 1)
3 : 078 (F4 - A1 = 3)
4 : 045 (F7 - A0 = 7)
5 : 007 (F44 - A9 = 35)
Most 5's in 15 number set:
02 03 05 06 10 12 13 16 20 25 28 30 31 33 35
0 : 007 (F44 - A53 = -9 ***)
1 : 075 (F5 - A1 = 4)
2 : 114 (F3 - A0 = 3)
3 : 070 (F5 - A2 = 3)
4 : 027 (F12 - A12 = 0)
5 : 012 (F26 - A41 = -15 ***)
Overall 20 number set:
02 03 04 05 07 10 11 12 16 19 20 21 22 24 28 31 32 34 35 36
0 : 004 (F77 - A32 = 45)
1 : 022 (F14 - A7 = 7)
2 : 060 (F6 - A2 = 4)
3 : 105 (F3 - A1 = 2)
4 : 088 (F4 - A0 = 4)
5 : 026 (F12 - A9 = 3)
Most 5's in 20 number set:
01 02 03 05 07 10 11 12 14 16 19 20 21 24 25 26 28 29 31 32
0 : 002 (F153 - A170 = -17 ***)
1 : 027 (F12 - A8 = 4)
2 : 079 (F4 - A1 = 3)
3 : 097 (F4 - A0 = 4)
4 : 070 (F5 - A7 = -2 ***)
5 : 030 (F11 - A12 = -1 ***)
Hope this helps.