Frequencies for first 10,000 rows of prov2450 variable in pos2006 dataset :

 srv: rehab |
  inpatient |
 (not carf) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,710       87.10       87.10
          0 |        774        7.74       94.84
          1 |        367        3.67       98.51
          2 |        113        1.13       99.64
          3 |         36        0.36      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016