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

         a4 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,739       57.39       57.39
          1 |         58        0.58       57.97
          2 |         83        0.83       58.80
          3 |         70        0.70       59.50
          4 |         82        0.82       60.32
          5 |         96        0.96       61.28
          6 |         94        0.94       62.22
          7 |        127        1.27       63.49
          8 |        125        1.25       64.74
          9 |        126        1.26       66.00
         10 |        146        1.46       67.46
         11 |        143        1.43       68.89
         12 |        175        1.75       70.64
         13 |        206        2.06       72.70
         14 |        160        1.60       74.30
         15 |        185        1.85       76.15
         16 |        192        1.92       78.07
         17 |        190        1.90       79.97
         18 |        177        1.77       81.74
         19 |        192        1.92       83.66
         20 |        182        1.82       85.48
         21 |        180        1.80       87.28
         22 |        176        1.76       89.04
         23 |        151        1.51       90.55
         24 |        140        1.40       91.95
         25 |        109        1.09       93.04
         26 |        111        1.11       94.15
         27 |        112        1.12       95.27
         28 |         93        0.93       96.20
         29 |         68        0.68       96.88
         30 |         68        0.68       97.56
         31 |         43        0.43       97.99
         32 |         30        0.30       98.29
         33 |         31        0.31       98.60
         34 |         21        0.21       98.81
         35 |         19        0.19       99.00
         36 |         24        0.24       99.24
         37 |         17        0.17       99.41
         38 |         13        0.13       99.54
         39 |          9        0.09       99.63
         40 |          6        0.06       99.69
         41 |          5        0.05       99.74
         42 |          6        0.06       99.80
         43 |          3        0.03       99.83
         44 |          3        0.03       99.86
         45 |          4        0.04       99.90
         46 |          3        0.03       99.93
         50 |          1        0.01       99.94
         51 |          3        0.03       99.97
         60 |          1        0.01       99.98
         75 |          1        0.01       99.99
         81 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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