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

   Services |
  Provided: |
Respiratory |
       Care |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,484       84.84       84.84
          0 |        359        3.59       88.43
          1 |        977        9.77       98.20
          2 |        136        1.36       99.56
          3 |         44        0.44      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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