Frequencies for first 10,000 rows of p10 variable in miper dataset :

        p10 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,787       67.87       67.87
          1 |         26        0.26       68.13
          2 |         72        0.72       68.85
          3 |         78        0.78       69.63
          4 |         60        0.60       70.23
          5 |         82        0.82       71.05
          6 |         92        0.92       71.97
          7 |         98        0.98       72.95
          8 |         88        0.88       73.83
          9 |        105        1.05       74.88
         10 |        128        1.28       76.16
         11 |        131        1.31       77.47
         12 |        122        1.22       78.69
         13 |        133        1.33       80.02
         14 |        148        1.48       81.50
         15 |        155        1.55       83.05
         16 |        165        1.65       84.70
         17 |        145        1.45       86.15
         18 |        143        1.43       87.58
         19 |        129        1.29       88.87
         20 |        148        1.48       90.35
         21 |        115        1.15       91.50
         22 |        118        1.18       92.68
         23 |        104        1.04       93.72
         24 |         96        0.96       94.68
         25 |         85        0.85       95.53
         26 |         72        0.72       96.25
         27 |         54        0.54       96.79
         28 |         58        0.58       97.37
         29 |         53        0.53       97.90
         30 |         44        0.44       98.34
         31 |         37        0.37       98.71
         32 |         20        0.20       98.91
         33 |         16        0.16       99.07
         34 |         15        0.15       99.22
         35 |          7        0.07       99.29
         36 |         12        0.12       99.41
         37 |         10        0.10       99.51
         38 |         11        0.11       99.62
         39 |          5        0.05       99.67
         40 |          2        0.02       99.69
         41 |          4        0.04       99.73
         42 |          3        0.03       99.76
         43 |          5        0.05       99.81
         44 |          1        0.01       99.82
         45 |          3        0.03       99.85
         46 |          2        0.02       99.87
         47 |          3        0.03       99.90
         48 |          3        0.03       99.93
         49 |          2        0.02       99.95
         51 |          1        0.01       99.96
         54 |          1        0.01       99.97
         56 |          2        0.02       99.99
         88 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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