Frequencies for first 10,000 rows of urgnt_care_srvc_cd variable in pos2007 dataset :

srv: urgent |
care center |
   services |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,682       86.82       86.82
          0 |      1,296       12.96       99.78
          1 |         17        0.17       99.95
          2 |          3        0.03       99.98
          3 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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