Frequencies for first 10,000 rows of prov0010 variable in pos2009 dataset :

ACCREDITATI |
         ON |
  INDICATOR |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      5,925       59.25       59.25
          0 |      2,733       27.33       86.58
          1 |      1,143       11.43       98.01
          2 |        169        1.69       99.70
          3 |         23        0.23       99.93
          4 |          5        0.05       99.98
          5 |          1        0.01       99.99
          8 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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