Frequencies for first 10,000 rows of prov2120 variable in pos1991 dataset :

srv: dental |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      5,854       58.54       58.54
          0 |      1,104       11.04       69.58
          1 |        887        8.87       78.45
          2 |        251        2.51       80.96
          3 |        214        2.14       83.10
          4 |         24        0.24       83.34
          5 |      1,403       14.03       97.37
          6 |          8        0.08       97.45
          7 |        255        2.55      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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