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

   resident |
    program |
approved by |
        aoa |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,693       86.93       86.93
          N |      1,278       12.78       99.71
          Y |         29        0.29      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017