Frequencies for first 10,000 rows of p9 variable in miper dataset :

         p9 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,941       69.41       69.41
          1 |         40        0.40       69.81
          2 |         69        0.69       70.50
          3 |         87        0.87       71.37
          4 |         69        0.69       72.06
          5 |         72        0.72       72.78
          6 |         70        0.70       73.48
          7 |         91        0.91       74.39
          8 |         93        0.93       75.32
          9 |        106        1.06       76.38
         10 |        127        1.27       77.65
         11 |        104        1.04       78.69
         12 |        149        1.49       80.18
         13 |        132        1.32       81.50
         14 |        141        1.41       82.91
         15 |        175        1.75       84.66
         16 |        136        1.36       86.02
         17 |        130        1.30       87.32
         18 |        129        1.29       88.61
         19 |        116        1.16       89.77
         20 |        132        1.32       91.09
         21 |        126        1.26       92.35
         22 |        114        1.14       93.49
         23 |         91        0.91       94.40
         24 |         76        0.76       95.16
         25 |         85        0.85       96.01
         26 |         53        0.53       96.54
         27 |         68        0.68       97.22
         28 |         52        0.52       97.74
         29 |         50        0.50       98.24
         30 |         27        0.27       98.51
         31 |         25        0.25       98.76
         32 |         21        0.21       98.97
         33 |         15        0.15       99.12
         34 |         21        0.21       99.33
         35 |         17        0.17       99.50
         36 |         13        0.13       99.63
         37 |          9        0.09       99.72
         38 |          7        0.07       99.79
         39 |          3        0.03       99.82
         40 |          4        0.04       99.86
         41 |          3        0.03       99.89
         42 |          1        0.01       99.90
         43 |          2        0.02       99.92
         44 |          1        0.01       99.93
         46 |          1        0.01       99.94
         48 |          4        0.04       99.98
         55 |          1        0.01       99.99
         62 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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