Frequencies for first 10,000 rows of MDCL_SCHL_AFLTN_CD variable in pos2011 dataset :

    Medical |
     School |
Affiliation |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,626       86.26       86.26
          1 |         74        0.74       87.00
          2 |        113        1.13       88.13
          3 |         38        0.38       88.51
          4 |      1,149       11.49      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 19 Apr 2019