Frequencies for first 10,000 rows of a4 variable in miacc dataset :

         a4 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,970       59.70       59.70
          1 |         47        0.47       60.17
          2 |         91        0.91       61.08
          3 |         75        0.75       61.83
          4 |         74        0.74       62.57
          5 |         81        0.81       63.38
          6 |         99        0.99       64.37
          7 |        104        1.04       65.41
          8 |        111        1.11       66.52
          9 |        112        1.12       67.64
         10 |        155        1.55       69.19
         11 |        149        1.49       70.68
         12 |        150        1.50       72.18
         13 |        150        1.50       73.68
         14 |        190        1.90       75.58
         15 |        172        1.72       77.30
         16 |        196        1.96       79.26
         17 |        180        1.80       81.06
         18 |        158        1.58       82.64
         19 |        193        1.93       84.57
         20 |        181        1.81       86.38
         21 |        171        1.71       88.09
         22 |        159        1.59       89.68
         23 |        143        1.43       91.11
         24 |        121        1.21       92.32
         25 |        124        1.24       93.56
         26 |        112        1.12       94.68
         27 |         76        0.76       95.44
         28 |         88        0.88       96.32
         29 |         65        0.65       96.97
         30 |         45        0.45       97.42
         31 |         54        0.54       97.96
         32 |         44        0.44       98.40
         33 |         33        0.33       98.73
         34 |         20        0.20       98.93
         35 |         17        0.17       99.10
         36 |          9        0.09       99.19
         37 |         11        0.11       99.30
         38 |         15        0.15       99.45
         39 |         10        0.10       99.55
         40 |          8        0.08       99.63
         41 |          6        0.06       99.69
         42 |          9        0.09       99.78
         43 |          3        0.03       99.81
         44 |          5        0.05       99.86
         45 |          3        0.03       99.89
         46 |          1        0.01       99.90
         48 |          1        0.01       99.91
         49 |          1        0.01       99.92
         50 |          2        0.02       99.94
         51 |          1        0.01       99.95
         52 |          1        0.01       99.96
         56 |          1        0.01       99.97
         57 |          1        0.01       99.98
         67 |          1        0.01       99.99
         77 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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