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

         a4 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,899       58.99       58.99
          1 |         58        0.58       59.57
          2 |         76        0.76       60.33
          3 |         88        0.88       61.21
          4 |         89        0.89       62.10
          5 |         79        0.79       62.89
          6 |         98        0.98       63.87
          7 |         98        0.98       64.85
          8 |        129        1.29       66.14
          9 |        143        1.43       67.57
         10 |        145        1.45       69.02
         11 |        142        1.42       70.44
         12 |        140        1.40       71.84
         13 |        165        1.65       73.49
         14 |        189        1.89       75.38
         15 |        183        1.83       77.21
         16 |        218        2.18       79.39
         17 |        188        1.88       81.27
         18 |        173        1.73       83.00
         19 |        192        1.92       84.92
         20 |        161        1.61       86.53
         21 |        170        1.70       88.23
         22 |        144        1.44       89.67
         23 |        138        1.38       91.05
         24 |        133        1.33       92.38
         25 |        120        1.20       93.58
         26 |        114        1.14       94.72
         27 |         83        0.83       95.55
         28 |         73        0.73       96.28
         29 |         55        0.55       96.83
         30 |         60        0.60       97.43
         31 |         37        0.37       97.80
         32 |         42        0.42       98.22
         33 |         32        0.32       98.54
         34 |         23        0.23       98.77
         35 |         20        0.20       98.97
         36 |         17        0.17       99.14
         37 |         21        0.21       99.35
         38 |         12        0.12       99.47
         39 |          9        0.09       99.56
         40 |         11        0.11       99.67
         41 |          4        0.04       99.71
         42 |          2        0.02       99.73
         43 |          5        0.05       99.78
         44 |          3        0.03       99.81
         45 |          5        0.05       99.86
         46 |          1        0.01       99.87
         47 |          2        0.02       99.89
         48 |          1        0.01       99.90
         49 |          1        0.01       99.91
         51 |          1        0.01       99.92
         58 |          3        0.03       99.95
         59 |          1        0.01       99.96
         61 |          1        0.01       99.97
         65 |          1        0.01       99.98
         68 |          1        0.01       99.99
         69 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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