Frequencies for first 10,000 rows of mdcl_schl_afltn_cd variable in pos2015 dat

    Medical |
     School |
Affiliation |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,590       85.90       85.90
          1 |         79        0.79       86.69
          2 |        115        1.15       87.84
          3 |         35        0.35       88.19
          4 |      1,181       11.81      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016