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

        p10 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,484       74.84       74.84
          1 |         45        0.45       75.29
          2 |         53        0.53       75.82
          3 |         31        0.31       76.13
          4 |         46        0.46       76.59
          5 |         53        0.53       77.12
          6 |         56        0.56       77.68
          7 |         58        0.58       78.26
          8 |         70        0.70       78.96
          9 |         73        0.73       79.69
         10 |         87        0.87       80.56
         11 |         99        0.99       81.55
         12 |         94        0.94       82.49
         13 |        109        1.09       83.58
         14 |        109        1.09       84.67
         15 |        110        1.10       85.77
         16 |        124        1.24       87.01
         17 |        122        1.22       88.23
         18 |        110        1.10       89.33
         19 |        128        1.28       90.61
         20 |        103        1.03       91.64
         21 |        109        1.09       92.73
         22 |        103        1.03       93.76
         23 |         85        0.85       94.61
         24 |         77        0.77       95.38
         25 |         66        0.66       96.04
         26 |         56        0.56       96.60
         27 |         49        0.49       97.09
         28 |         46        0.46       97.55
         29 |         30        0.30       97.85
         30 |         43        0.43       98.28
         31 |         24        0.24       98.52
         32 |         17        0.17       98.69
         33 |         14        0.14       98.83
         34 |         17        0.17       99.00
         35 |         19        0.19       99.19
         36 |         15        0.15       99.34
         37 |         13        0.13       99.47
         38 |          8        0.08       99.55
         39 |          7        0.07       99.62
         40 |          8        0.08       99.70
         41 |          7        0.07       99.77
         42 |          7        0.07       99.84
         43 |          3        0.03       99.87
         44 |          3        0.03       99.90
         45 |          1        0.01       99.91
         46 |          1        0.01       99.92
         47 |          2        0.02       99.94
         50 |          1        0.01       99.95
         51 |          1        0.01       99.96
         54 |          1        0.01       99.97
         60 |          1        0.01       99.98
         63 |          1        0.01       99.99
         65 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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