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

        p10 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,682       66.82       66.82
          1 |         44        0.44       67.26
          2 |         77        0.77       68.03
          3 |         75        0.75       68.78
          4 |         67        0.67       69.45
          5 |         89        0.89       70.34
          6 |         85        0.85       71.19
          7 |         84        0.84       72.03
          8 |         93        0.93       72.96
          9 |        109        1.09       74.05
         10 |        121        1.21       75.26
         11 |        143        1.43       76.69
         12 |        132        1.32       78.01
         13 |        130        1.30       79.31
         14 |        152        1.52       80.83
         15 |        170        1.70       82.53
         16 |        165        1.65       84.18
         17 |        174        1.74       85.92
         18 |        152        1.52       87.44
         19 |        166        1.66       89.10
         20 |        153        1.53       90.63
         21 |        149        1.49       92.12
         22 |        115        1.15       93.27
         23 |        101        1.01       94.28
         24 |         90        0.90       95.18
         25 |         76        0.76       95.94
         26 |         53        0.53       96.47
         27 |         67        0.67       97.14
         28 |         59        0.59       97.73
         29 |         49        0.49       98.22
         30 |         43        0.43       98.65
         31 |         30        0.30       98.95
         32 |         21        0.21       99.16
         33 |         12        0.12       99.28
         34 |          8        0.08       99.36
         35 |         10        0.10       99.46
         36 |          4        0.04       99.50
         37 |          8        0.08       99.58
         38 |         10        0.10       99.68
         39 |          3        0.03       99.71
         40 |          7        0.07       99.78
         41 |          4        0.04       99.82
         42 |          3        0.03       99.85
         43 |          3        0.03       99.88
         44 |          2        0.02       99.90
         46 |          2        0.02       99.92
         48 |          2        0.02       99.94
         52 |          1        0.01       99.95
         53 |          1        0.01       99.96
         56 |          2        0.02       99.98
         58 |          1        0.01       99.99
         66 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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