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

   Service: |
    Medical |
     Social |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,042       80.42       80.42
          0 |        289        2.89       83.31
          1 |      1,275       12.75       96.06
          2 |        286        2.86       98.92
          3 |        108        1.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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