Frequencies for first 10,000 rows of prov2120 variable in pos1998 dataset :

srv: dental |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,805       88.05       88.05
          0 |        871        8.71       96.76
          1 |        135        1.35       98.11
          2 |        170        1.70       99.81
          3 |         19        0.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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