Frequencies for first 10,000 rows of prov6175 variable in pos2006 dataset :

    srv: ct |
    scanner |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,710       87.10       87.10
          0 |      1,185       11.85       98.95
          1 |         92        0.92       99.87
          2 |          9        0.09       99.96
          3 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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