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

 srv: rehab |
          - |
 outpatient |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,682       86.82       86.82
          0 |      1,213       12.13       98.95
          1 |         82        0.82       99.77
          2 |         17        0.17       99.94
          3 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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