Frequencies for first 10,000 rows of prov0010 variable in pos1995 dataset :

accreditati |
         on |
  indicator |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,686       86.86       86.86
          0 |        284        2.84       89.70
          1 |      1,023       10.23       99.93
          2 |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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