Frequencies for first 10,000 rows of rsdnt_pgm_ada_aprvd_sw variable in pos2006 dataset :

   resident |
    program |
approved by |
        ada |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,710       87.10       87.10
          N |      1,274       12.74       99.84
          Y |         16        0.16      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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