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

         a4 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,924       59.24       59.24
          1 |         38        0.38       59.62
          2 |         86        0.86       60.48
          3 |         65        0.65       61.13
          4 |         77        0.77       61.90
          5 |         79        0.79       62.69
          6 |         98        0.98       63.67
          7 |        114        1.14       64.81
          8 |         97        0.97       65.78
          9 |        123        1.23       67.01
         10 |        132        1.32       68.33
         11 |        141        1.41       69.74
         12 |        153        1.53       71.27
         13 |        152        1.52       72.79
         14 |        182        1.82       74.61
         15 |        183        1.83       76.44
         16 |        181        1.81       78.25
         17 |        169        1.69       79.94
         18 |        183        1.83       81.77
         19 |        184        1.84       83.61
         20 |        182        1.82       85.43
         21 |        159        1.59       87.02
         22 |        184        1.84       88.86
         23 |        144        1.44       90.30
         24 |        136        1.36       91.66
         25 |        122        1.22       92.88
         26 |        116        1.16       94.04
         27 |         89        0.89       94.93
         28 |         74        0.74       95.67
         29 |         76        0.76       96.43
         30 |         52        0.52       96.95
         31 |         39        0.39       97.34
         32 |         40        0.40       97.74
         33 |         44        0.44       98.18
         34 |         38        0.38       98.56
         35 |         25        0.25       98.81
         36 |         20        0.20       99.01
         37 |         19        0.19       99.20
         38 |         11        0.11       99.31
         39 |         10        0.10       99.41
         40 |         13        0.13       99.54
         41 |          9        0.09       99.63
         42 |          4        0.04       99.67
         43 |          7        0.07       99.74
         44 |          2        0.02       99.76
         45 |          4        0.04       99.80
         46 |          2        0.02       99.82
         47 |          3        0.03       99.85
         48 |          2        0.02       99.87
         49 |          2        0.02       99.89
         50 |          1        0.01       99.90
         51 |          1        0.01       99.91
         52 |          3        0.03       99.94
         59 |          1        0.01       99.95
         61 |          1        0.01       99.96
         64 |          1        0.01       99.97
         65 |          1        0.01       99.98
         86 |          1        0.01       99.99
         89 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016