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

 srv: rehab |
          - |
 outpatient |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,655       86.55       86.55
          0 |      1,213       12.13       98.68
          1 |        102        1.02       99.70
          2 |         21        0.21       99.91
          3 |          9        0.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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