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

         a4 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,913       59.13       59.13
          1 |         47        0.47       59.60
          2 |         92        0.92       60.52
          3 |         72        0.72       61.24
          4 |         62        0.62       61.86
          5 |         68        0.68       62.54
          6 |         91        0.91       63.45
          7 |        118        1.18       64.63
          8 |        138        1.38       66.01
          9 |        121        1.21       67.22
         10 |        113        1.13       68.35
         11 |        148        1.48       69.83
         12 |        148        1.48       71.31
         13 |        172        1.72       73.03
         14 |        193        1.93       74.96
         15 |        180        1.80       76.76
         16 |        179        1.79       78.55
         17 |        175        1.75       80.30
         18 |        201        2.01       82.31
         19 |        187        1.87       84.18
         20 |        155        1.55       85.73
         21 |        190        1.90       87.63
         22 |        152        1.52       89.15
         23 |        145        1.45       90.60
         24 |        138        1.38       91.98
         25 |        107        1.07       93.05
         26 |        107        1.07       94.12
         27 |         87        0.87       94.99
         28 |         90        0.90       95.89
         29 |         73        0.73       96.62
         30 |         52        0.52       97.14
         31 |         54        0.54       97.68
         32 |         31        0.31       97.99
         33 |         30        0.30       98.29
         34 |         26        0.26       98.55
         35 |         28        0.28       98.83
         36 |         11        0.11       98.94
         37 |         26        0.26       99.20
         38 |         18        0.18       99.38
         39 |         15        0.15       99.53
         40 |         12        0.12       99.65
         41 |         11        0.11       99.76
         42 |          5        0.05       99.81
         43 |          3        0.03       99.84
         44 |          3        0.03       99.87
         45 |          5        0.05       99.92
         46 |          3        0.03       99.95
         47 |          1        0.01       99.96
         50 |          1        0.01       99.97
         53 |          1        0.01       99.98
         54 |          1        0.01       99.99
         56 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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