Frequencies for p6 variable in miper dataset :

         p6 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        681       71.99       71.99
          1 |          1        0.11       72.09
          2 |         10        1.06       73.15
          3 |          8        0.85       74.00
          4 |          7        0.74       74.74
          5 |          7        0.74       75.48
          6 |          5        0.53       76.00
          7 |         10        1.06       77.06
          8 |          7        0.74       77.80
          9 |          6        0.63       78.44
         10 |         14        1.48       79.92
         11 |         12        1.27       81.18
         12 |          9        0.95       82.14
         13 |         11        1.16       83.30
         14 |         15        1.59       84.88
         15 |         10        1.06       85.94
         16 |         11        1.16       87.10
         17 |          9        0.95       88.05
         18 |         11        1.16       89.22
         19 |         13        1.37       90.59
         20 |         15        1.59       92.18
         21 |          7        0.74       92.92
         22 |          1        0.11       93.02
         23 |         10        1.06       94.08
         24 |          7        0.74       94.82
         25 |          5        0.53       95.35
         26 |          7        0.74       96.09
         27 |          2        0.21       96.30
         28 |          2        0.21       96.51
         29 |          6        0.63       97.15
         30 |          3        0.32       97.46
         31 |          1        0.11       97.57
         32 |          5        0.53       98.10
         33 |          3        0.32       98.41
         34 |          3        0.32       98.73
         35 |          2        0.21       98.94
         36 |          1        0.11       99.05
         37 |          1        0.11       99.15
         38 |          2        0.21       99.37
         39 |          1        0.11       99.47
         40 |          3        0.32       99.79
         43 |          1        0.11       99.89
         57 |          1        0.11      100.00
------------+-----------------------------------
      Total |        946      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016