Frequencies for first 10,000 rows of rsprtry_care_srvc_cd variable in pos2009 dataset :

       SRV: |
RESPIRATORY |
       CARE |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,509       85.09       85.09
          0 |        352        3.52       88.61
          1 |        963        9.63       98.24
          2 |        135        1.35       99.59
          3 |         41        0.41      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017