Frequencies for first 10,000 rows of prov1750 variable in pos2004 dataset :

rehabilitat |
   ion unit |
   terminat |
       date |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,955       99.55       99.55
   19850616 |          1        0.01       99.56
   19871231 |          1        0.01       99.57
   19880630 |          1        0.01       99.58
   19880701 |          2        0.02       99.60
   19890101 |          1        0.01       99.61
   19890401 |          1        0.01       99.62
   19890701 |          2        0.02       99.64
   19900630 |          1        0.01       99.65
   19910701 |          1        0.01       99.66
   19910831 |          1        0.01       99.67
   19910911 |          1        0.01       99.68
   19910930 |          1        0.01       99.69
   19920101 |          1        0.01       99.70
   19920501 |          1        0.01       99.71
   19921027 |          1        0.01       99.72
   19930531 |          1        0.01       99.73
   19930701 |          2        0.02       99.75
   19931001 |          2        0.02       99.77
   19940301 |          1        0.01       99.78
   19940401 |          1        0.01       99.79
   19940428 |          1        0.01       99.80
   19940531 |          1        0.01       99.81
   19941216 |          1        0.01       99.82
   19950101 |          1        0.01       99.83
   19950630 |          2        0.02       99.85
   19951231 |          3        0.03       99.88
   19960930 |          1        0.01       99.89
   19961101 |          1        0.01       99.90
   19970601 |          1        0.01       99.91
   19990105 |          2        0.02       99.93
   19991219 |          1        0.01       99.94
   20000201 |          1        0.01       99.95
   20010605 |          1        0.01       99.96
   20020501 |          1        0.01       99.97
   20020630 |          1        0.01       99.98
   20030601 |          1        0.01       99.99
   20031205 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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