Frequencies for first 10,000 rows of rsdnt_pgm_ama_aprvd_sw variable in pos2010 dataset :

   RESIDENT |
    PROGRAM |
APPROVED BY |
        AMA |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,638       86.38       86.38
          N |      1,228       12.28       98.66
          Y |        134        1.34      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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