Frequencies for first 10,000 rows of p3 variable in miper dataset :

         p3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,544       75.44       75.44
          1 |         40        0.40       75.84
          2 |         76        0.76       76.60
          3 |         52        0.52       77.12
          4 |         54        0.54       77.66
          5 |         51        0.51       78.17
          6 |         71        0.71       78.88
          7 |         71        0.71       79.59
          8 |         78        0.78       80.37
          9 |         88        0.88       81.25
         10 |         96        0.96       82.21
         11 |         97        0.97       83.18
         12 |        110        1.10       84.28
         13 |        103        1.03       85.31
         14 |        103        1.03       86.34
         15 |        110        1.10       87.44
         16 |         93        0.93       88.37
         17 |         99        0.99       89.36
         18 |        109        1.09       90.45
         19 |         77        0.77       91.22
         20 |         90        0.90       92.12
         21 |        103        1.03       93.15
         22 |         97        0.97       94.12
         23 |         81        0.81       94.93
         24 |         81        0.81       95.74
         25 |         66        0.66       96.40
         26 |         64        0.64       97.04
         27 |         52        0.52       97.56
         28 |         39        0.39       97.95
         29 |         43        0.43       98.38
         30 |         29        0.29       98.67
         31 |         24        0.24       98.91
         32 |         15        0.15       99.06
         33 |         13        0.13       99.19
         34 |         12        0.12       99.31
         35 |         14        0.14       99.45
         36 |         15        0.15       99.60
         37 |         10        0.10       99.70
         38 |          6        0.06       99.76
         39 |          9        0.09       99.85
         40 |          1        0.01       99.86
         41 |          3        0.03       99.89
         42 |          3        0.03       99.92
         43 |          1        0.01       99.93
         45 |          1        0.01       99.94
         49 |          2        0.02       99.96
         51 |          1        0.01       99.97
         52 |          1        0.01       99.98
         56 |          1        0.01       99.99
         57 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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