Frequencies for first 10,000 rows of prov0010 variable in pos2004 dataset :

accreditati |
         on |
  indicator |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      5,846       58.46       58.46
          0 |      2,986       29.86       88.32
          1 |        998        9.98       98.30
          2 |        146        1.46       99.76
          3 |          8        0.08       99.84
          4 |         16        0.16      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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