Frequencies for first 10,000 rows of mdcl_schl_afltn_cd variable in pos2017 dat

    Medical |
     School |
Affiliation |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,571       85.71       85.71
          1 |         80        0.80       86.51
          2 |        122        1.22       87.73
          3 |         38        0.38       88.11
          4 |      1,189       11.89      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 9 Jan 2018