Frequencies for first 10,000 rows of rsdnt_pgm_ama_aprvd_sw variable in pos2005 dataset :

   resident |
    program |
approved by |
        ama |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,731       87.31       87.31
          N |      1,148       11.48       98.79
          Y |        121        1.21      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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