Frequencies for first 10,000 rows of prov1750 variable in pos1993 dataset :

rehabilitat |
   ion unit |
   terminat |
       date |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,985       99.85       99.85
     860630 |          1        0.01       99.86
     871231 |          1        0.01       99.87
     880701 |          2        0.02       99.89
     880802 |          1        0.01       99.90
     881231 |          1        0.01       99.91
     890101 |          1        0.01       99.92
     890309 |          1        0.01       99.93
     890401 |          1        0.01       99.94
     890701 |          1        0.01       99.95
     900101 |          1        0.01       99.96
     900630 |          1        0.01       99.97
     910131 |          1        0.01       99.98
     910701 |          1        0.01       99.99
     930101 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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