Frequencies for first 10,000 rows of prov1810 variable in pos2009 dataset :

   RESIDENT |
    PROGRAM |
APPROVED BY |
        AMA |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,649       86.49       86.49
          N |      1,215       12.15       98.64
          Y |        136        1.36      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016