Hi all, I am a newbie , need help.

Summary
B1* 37
B2 0
N1* 0
N2* 0
N3* 0
C1* 8
C2 0
C3 0
E1* 6
E2 1
S1* 2
S2* 0


How can i get the top 5 position in formula?
Eg:
Top 5
B1 37