I have letters and numbers in cells and want to count the number of times that a particular letter or number appears in the column of cells.
Example: I know that there are 9 C's in the list below. I want to count the number of times that the number 1 shows up in the list, or the number 2, etc. What formula would work best for this function?

C1-02
C1-03
C1-04
C1-05
C1-06
C2-08
C2-07
C2-14
C1-09