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

         a4 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,012       60.12       60.12
          1 |         57        0.57       60.69
          2 |         80        0.80       61.49
          3 |         64        0.64       62.13
          4 |         71        0.71       62.84
          5 |         56        0.56       63.40
          6 |         95        0.95       64.35
          7 |         89        0.89       65.24
          8 |        125        1.25       66.49
          9 |        123        1.23       67.72
         10 |        141        1.41       69.13
         11 |        144        1.44       70.57
         12 |        145        1.45       72.02
         13 |        184        1.84       73.86
         14 |        193        1.93       75.79
         15 |        169        1.69       77.48
         16 |        197        1.97       79.45
         17 |        167        1.67       81.12
         18 |        193        1.93       83.05
         19 |        192        1.92       84.97
         20 |        188        1.88       86.85
         21 |        150        1.50       88.35
         22 |        131        1.31       89.66
         23 |        112        1.12       90.78
         24 |        134        1.34       92.12
         25 |        112        1.12       93.24
         26 |         91        0.91       94.15
         27 |         73        0.73       94.88
         28 |         83        0.83       95.71
         29 |         64        0.64       96.35
         30 |         59        0.59       96.94
         31 |         48        0.48       97.42
         32 |         39        0.39       97.81
         33 |         28        0.28       98.09
         34 |         22        0.22       98.31
         35 |         28        0.28       98.59
         36 |         28        0.28       98.87
         37 |         12        0.12       98.99
         38 |         16        0.16       99.15
         39 |         15        0.15       99.30
         40 |         21        0.21       99.51
         41 |          5        0.05       99.56
         42 |          9        0.09       99.65
         43 |          7        0.07       99.72
         44 |          4        0.04       99.76
         45 |          5        0.05       99.81
         46 |          3        0.03       99.84
         47 |          3        0.03       99.87
         48 |          3        0.03       99.90
         50 |          2        0.02       99.92
         53 |          3        0.03       99.95
         60 |          1        0.01       99.96
         62 |          1        0.01       99.97
         64 |          2        0.02       99.99
         65 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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