Frequencies for first 10,000 rows of prov1815 variable in pos2001 dataset :

   resident |
    program |
approved by |
        aoa |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,837       88.37       88.37
          N |      1,149       11.49       99.86
          Y |         14        0.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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