Frequencies for first 10,000 rows of prov1810 variable in pos1991 dataset :

   resident |
    program |
approved by |
        ama |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,770       87.70       87.70
          N |      1,056       10.56       98.26
          Y |        174        1.74      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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