Frequencies for first 10,000 rows of p7 variable in miper dataset :

         p7 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,411       74.11       74.11
          1 |         28        0.28       74.39
          2 |         70        0.70       75.09
          3 |         55        0.55       75.64
          4 |         57        0.57       76.21
          5 |         51        0.51       76.72
          6 |         82        0.82       77.54
          7 |         67        0.67       78.21
          8 |         87        0.87       79.08
          9 |         86        0.86       79.94
         10 |        103        1.03       80.97
         11 |        112        1.12       82.09
         12 |        106        1.06       83.15
         13 |        112        1.12       84.27
         14 |        105        1.05       85.32
         15 |        103        1.03       86.35
         16 |        112        1.12       87.47
         17 |        124        1.24       88.71
         18 |        108        1.08       89.79
         19 |        103        1.03       90.82
         20 |        116        1.16       91.98
         21 |        118        1.18       93.16
         22 |         90        0.90       94.06
         23 |         87        0.87       94.93
         24 |         65        0.65       95.58
         25 |         66        0.66       96.24
         26 |         44        0.44       96.68
         27 |         55        0.55       97.23
         28 |         48        0.48       97.71
         29 |         33        0.33       98.04
         30 |         39        0.39       98.43
         31 |         20        0.20       98.63
         32 |         21        0.21       98.84
         33 |         17        0.17       99.01
         34 |         22        0.22       99.23
         35 |         14        0.14       99.37
         36 |          9        0.09       99.46
         37 |          9        0.09       99.55
         38 |         10        0.10       99.65
         39 |          5        0.05       99.70
         40 |          6        0.06       99.76
         41 |          2        0.02       99.78
         42 |          7        0.07       99.85
         43 |          4        0.04       99.89
         45 |          2        0.02       99.91
         47 |          1        0.01       99.92
         48 |          1        0.01       99.93
         51 |          1        0.01       99.94
         52 |          1        0.01       99.95
         55 |          1        0.01       99.96
         58 |          1        0.01       99.97
         59 |          1        0.01       99.98
         71 |          1        0.01       99.99
         72 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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