Frequencies for first 10,000 rows of a3 variable in miacc dataset :

         a3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,153       61.53       61.53
          1 |         53        0.53       62.06
          2 |         87        0.87       62.93
          3 |         75        0.75       63.68
          4 |         85        0.85       64.53
          5 |         81        0.81       65.34
          6 |         87        0.87       66.21
          7 |         95        0.95       67.16
          8 |        113        1.13       68.29
          9 |        126        1.26       69.55
         10 |        125        1.25       70.80
         11 |        135        1.35       72.15
         12 |        146        1.46       73.61
         13 |        148        1.48       75.09
         14 |        162        1.62       76.71
         15 |        184        1.84       78.55
         16 |        177        1.77       80.32
         17 |        165        1.65       81.97
         18 |        163        1.63       83.60
         19 |        138        1.38       84.98
         20 |        151        1.51       86.49
         21 |        178        1.78       88.27
         22 |        159        1.59       89.86
         23 |        141        1.41       91.27
         24 |        126        1.26       92.53
         25 |        115        1.15       93.68
         26 |        100        1.00       94.68
         27 |         88        0.88       95.56
         28 |         69        0.69       96.25
         29 |         74        0.74       96.99
         30 |         50        0.50       97.49
         31 |         48        0.48       97.97
         32 |         36        0.36       98.33
         33 |         24        0.24       98.57
         34 |         26        0.26       98.83
         35 |         17        0.17       99.00
         36 |         26        0.26       99.26
         37 |         18        0.18       99.44
         38 |         12        0.12       99.56
         39 |         15        0.15       99.71
         40 |          2        0.02       99.73
         41 |          5        0.05       99.78
         42 |          6        0.06       99.84
         43 |          2        0.02       99.86
         45 |          3        0.03       99.89
         46 |          1        0.01       99.90
         47 |          1        0.01       99.91
         49 |          2        0.02       99.93
         50 |          1        0.01       99.94
         51 |          1        0.01       99.95
         52 |          1        0.01       99.96
         54 |          2        0.02       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