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

        p10 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,101       61.01       61.01
          1 |         40        0.40       61.41
          2 |         77        0.77       62.18
          3 |         79        0.79       62.97
          4 |         80        0.80       63.77
          5 |         91        0.91       64.68
          6 |        104        1.04       65.72
          7 |        119        1.19       66.91
          8 |        137        1.37       68.28
          9 |        130        1.30       69.58
         10 |        144        1.44       71.02
         11 |        175        1.75       72.77
         12 |        179        1.79       74.56
         13 |        194        1.94       76.50
         14 |        179        1.79       78.29
         15 |        199        1.99       80.28
         16 |        188        1.88       82.16
         17 |        194        1.94       84.10
         18 |        166        1.66       85.76
         19 |        177        1.77       87.53
         20 |        145        1.45       88.98
         21 |        139        1.39       90.37
         22 |        150        1.50       91.87
         23 |        133        1.33       93.20
         24 |         98        0.98       94.18
         25 |         95        0.95       95.13
         26 |         80        0.80       95.93
         27 |         76        0.76       96.69
         28 |         63        0.63       97.32
         29 |         41        0.41       97.73
         30 |         48        0.48       98.21
         31 |         36        0.36       98.57
         32 |         19        0.19       98.76
         33 |         24        0.24       99.00
         34 |         17        0.17       99.17
         35 |         21        0.21       99.38
         36 |         10        0.10       99.48
         37 |          8        0.08       99.56
         38 |         11        0.11       99.67
         39 |          5        0.05       99.72
         40 |          7        0.07       99.79
         41 |          5        0.05       99.84
         42 |          4        0.04       99.88
         44 |          1        0.01       99.89
         45 |          3        0.03       99.92
         47 |          2        0.02       99.94
         48 |          2        0.02       99.96
         49 |          1        0.01       99.97
         50 |          1        0.01       99.98
         52 |          1        0.01       99.99
         56 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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