Frequencies for first 10,000 rows of prov1810 variable in pos1995 dataset :

   resident |
    program |
approved by |
        ama |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,933       89.33       89.33
          N |        932        9.32       98.65
          Y |        135        1.35      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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