Results from processing 105 letters:
Letter    Occurrences    Percentage
======    ===========    ==========
   A                3          2.86
   B                3          2.86
   C                3          2.86
   D                3          2.86
   E                9          8.57
   F                3          2.86
   G                3          2.86
   H                6          5.71
   I                3          2.86
   J                3          2.86
   K                3          2.86
   L                3          2.86
   M                3          2.86
   N                3          2.86
   O               12         11.43
   P                3          2.86
   Q                3          2.86
   R                6          5.71
   S                3          2.86
   T                6          5.71
   U                6          5.71
   V                3          2.86
   W                3          2.86
   X                3          2.86
   Y                3          2.86
   Z                3          2.86