Frequencies for first 10,000 rows of prov5055 variable in posclia2008 dataset :

 accredited |
    y match |
  date ashi |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,997       99.97       99.97
   19941020 |          1        0.01       99.98
   19960206 |          1        0.01       99.99
   20060208 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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