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

        p10 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,290       72.90       72.90
          1 |         44        0.44       73.34
          2 |         57        0.57       73.91
          3 |         64        0.64       74.55
          4 |         47        0.47       75.02
          5 |         74        0.74       75.76
          6 |         73        0.73       76.49
          7 |         81        0.81       77.30
          8 |         84        0.84       78.14
          9 |         92        0.92       79.06
         10 |         91        0.91       79.97
         11 |        109        1.09       81.06
         12 |        103        1.03       82.09
         13 |        117        1.17       83.26
         14 |        100        1.00       84.26
         15 |        129        1.29       85.55
         16 |        123        1.23       86.78
         17 |        113        1.13       87.91
         18 |        108        1.08       88.99
         19 |        135        1.35       90.34
         20 |         96        0.96       91.30
         21 |        100        1.00       92.30
         22 |        127        1.27       93.57
         23 |        106        1.06       94.63
         24 |         88        0.88       95.51
         25 |         70        0.70       96.21
         26 |         60        0.60       96.81
         27 |         55        0.55       97.36
         28 |         65        0.65       98.01
         29 |         26        0.26       98.27
         30 |         30        0.30       98.57
         31 |         30        0.30       98.87
         32 |         17        0.17       99.04
         33 |         13        0.13       99.17
         34 |         10        0.10       99.27
         35 |         10        0.10       99.37
         36 |         13        0.13       99.50
         37 |          8        0.08       99.58
         38 |         11        0.11       99.69
         39 |          3        0.03       99.72
         40 |          3        0.03       99.75
         41 |          4        0.04       99.79
         42 |          4        0.04       99.83
         43 |          2        0.02       99.85
         44 |          3        0.03       99.88
         45 |          3        0.03       99.91
         46 |          1        0.01       99.92
         47 |          1        0.01       99.93
         48 |          1        0.01       99.94
         50 |          1        0.01       99.95
         51 |          1        0.01       99.96
         52 |          1        0.01       99.97
         55 |          1        0.01       99.98
         60 |          1        0.01       99.99
         78 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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