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

srv: urgent |
care center |
   services |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,655       86.55       86.55
          0 |      1,318       13.18       99.73
          1 |         21        0.21       99.94
          2 |          4        0.04       99.98
          3 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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