Frequencies for first 10,000 rows of rsprtry_care_srvc_cd variable in pos2008 dataset :

       srv: |
respiratory |
       care |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,526       85.26       85.26
          0 |        351        3.51       88.77
          1 |        952        9.52       98.29
          2 |        135        1.35       99.64
          3 |         36        0.36      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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