Frequencies for prgaf variable in impact2009 dataset :

Puerto Rico |
   Specific |
       Post |
Reclass GAF |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      3,566       98.54       98.54
   .8722643 |          3        0.08       98.62
   .8924199 |          3        0.08       98.70
   .8990073 |          1        0.03       98.73
   .9634155 |          4        0.11       98.84
   .9796957 |          1        0.03       98.87
     .98853 |          6        0.17       99.03
   1.016171 |         33        0.91       99.94
   1.039627 |          2        0.06      100.00
------------+-----------------------------------
      Total |      3,619      100.00

by Jean Roth , jroth@nber.org , 17 Mar 2016