Frequencies for first 10,000 rows of rehab_unit_trmntn_cd variable in pos2016 dataset :

Rehabilitat |
   ion Unit |
Termination |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      9,784       97.84       97.84
          0 |        147        1.47       99.31
          1 |         51        0.51       99.82
          4 |          3        0.03       99.85
          7 |         15        0.15      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 10 Jan 2017