Frequencies for first 10,000 rows of prov1810 variable in pos2007 dataset :

   resident |
    program |
approved by |
        ama |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,693       86.93       86.93
          N |      1,184       11.84       98.77
          Y |        123        1.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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