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

         p3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,611       66.11       66.11
          1 |         34        0.34       66.45
          2 |         64        0.64       67.09
          3 |         73        0.73       67.82
          4 |         69        0.69       68.51
          5 |         82        0.82       69.33
          6 |         78        0.78       70.11
          7 |        103        1.03       71.14
          8 |        112        1.12       72.26
          9 |        121        1.21       73.47
         10 |        124        1.24       74.71
         11 |        126        1.26       75.97
         12 |        153        1.53       77.50
         13 |        160        1.60       79.10
         14 |        156        1.56       80.66
         15 |        154        1.54       82.20
         16 |        162        1.62       83.82
         17 |        151        1.51       85.33
         18 |        141        1.41       86.74
         19 |        134        1.34       88.08
         20 |        160        1.60       89.68
         21 |        140        1.40       91.08
         22 |        117        1.17       92.25
         23 |        110        1.10       93.35
         24 |        106        1.06       94.41
         25 |         95        0.95       95.36
         26 |         77        0.77       96.13
         27 |         66        0.66       96.79
         28 |         57        0.57       97.36
         29 |         47        0.47       97.83
         30 |         34        0.34       98.17
         31 |         30        0.30       98.47
         32 |         30        0.30       98.77
         33 |         21        0.21       98.98
         34 |         26        0.26       99.24
         35 |          9        0.09       99.33
         36 |         15        0.15       99.48
         37 |          7        0.07       99.55
         38 |         15        0.15       99.70
         39 |          8        0.08       99.78
         40 |          4        0.04       99.82
         41 |          5        0.05       99.87
         42 |          1        0.01       99.88
         43 |          2        0.02       99.90
         44 |          1        0.01       99.91
         45 |          3        0.03       99.94
         46 |          1        0.01       99.95
         49 |          1        0.01       99.96
         55 |          1        0.01       99.97
         56 |          1        0.01       99.98
         59 |          1        0.01       99.99
         80 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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