Frequencies for first 10,000 rows of mdcl_schl_afltn_cd variable in pos2012 dat

    Medical |
     School |
Affiliation |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,618       86.18       86.18
          1 |         71        0.71       86.89
          2 |        110        1.10       87.99
          3 |         35        0.35       88.34
          4 |      1,166       11.66      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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