Frequencies for first 10,000 rows of prov0100 variable in posclia2000 dataset :

   prov0100 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,962       99.62       99.62
   19940314 |          1        0.01       99.63
   19941101 |          1        0.01       99.64
   19941201 |          2        0.02       99.66
   19950118 |          1        0.01       99.67
   19950301 |          1        0.01       99.68
   19951101 |          1        0.01       99.69
   19951108 |          1        0.01       99.70
   19951109 |          1        0.01       99.71
   19960101 |          2        0.02       99.73
   19960201 |          1        0.01       99.74
   19960326 |          1        0.01       99.75
   19960801 |          1        0.01       99.76
   19961028 |          1        0.01       99.77
   19961231 |          1        0.01       99.78
   19970101 |          1        0.01       99.79
   19970327 |          1        0.01       99.80
   19970602 |          1        0.01       99.81
   19970701 |          1        0.01       99.82
   19970708 |          4        0.04       99.86
   19980105 |          1        0.01       99.87
   19980416 |          1        0.01       99.88
   19980902 |          2        0.02       99.90
   19981022 |          1        0.01       99.91
   19981101 |          1        0.01       99.92
   19981229 |          1        0.01       99.93
   19990209 |          1        0.01       99.94
   19990325 |          1        0.01       99.95
   19990701 |          1        0.01       99.96
   19991130 |          1        0.01       99.97
   20000101 |          1        0.01       99.98
   20000331 |          1        0.01       99.99
   20000426 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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