Frequencies for first 10,000 rows of prov1810 variable in pos1999 dataset :

   resident |
    program |
approved by |
        ama |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,885       88.85       88.85
          N |        989        9.89       98.74
          Y |        126        1.26      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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