Frequencies for first 10,000 rows of prov5040 variable in posclia2010 dataset :

 accredited |
    y match |
  date aabb |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,994       99.94       99.94
   19950727 |          5        0.05       99.99
   20080425 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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