Frequencies for first 10,000 rows of prov0010 variable in pos1994 dataset :

accreditati |
         on |
  indicator |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,490       84.90       84.90
          0 |        273        2.73       87.63
          1 |      1,231       12.31       99.94
          2 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017