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

         a4 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,835       48.35       48.35
          1 |         46        0.46       48.81
          2 |         84        0.84       49.65
          3 |         98        0.98       50.63
          4 |         83        0.83       51.46
          5 |         94        0.94       52.40
          6 |        105        1.05       53.45
          7 |        131        1.31       54.76
          8 |        145        1.45       56.21
          9 |        158        1.58       57.79
         10 |        186        1.86       59.65
         11 |        187        1.87       61.52
         12 |        195        1.95       63.47
         13 |        227        2.27       65.74
         14 |        241        2.41       68.15
         15 |        227        2.27       70.42
         16 |        259        2.59       73.01
         17 |        234        2.34       75.35
         18 |        238        2.38       77.73
         19 |        214        2.14       79.87
         20 |        270        2.70       82.57
         21 |        242        2.42       84.99
         22 |        211        2.11       87.10
         23 |        201        2.01       89.11
         24 |        170        1.70       90.81
         25 |        156        1.56       92.37
         26 |        123        1.23       93.60
         27 |        114        1.14       94.74
         28 |        105        1.05       95.79
         29 |         74        0.74       96.53
         30 |         57        0.57       97.10
         31 |         39        0.39       97.49
         32 |         47        0.47       97.96
         33 |         32        0.32       98.28
         34 |         32        0.32       98.60
         35 |         25        0.25       98.85
         36 |         28        0.28       99.13
         37 |         12        0.12       99.25
         38 |         16        0.16       99.41
         39 |         16        0.16       99.57
         40 |          7        0.07       99.64
         41 |          5        0.05       99.69
         42 |          6        0.06       99.75
         43 |          6        0.06       99.81
         44 |          4        0.04       99.85
         45 |          2        0.02       99.87
         46 |          1        0.01       99.88
         47 |          3        0.03       99.91
         48 |          1        0.01       99.92
         49 |          4        0.04       99.96
         54 |          1        0.01       99.97
         56 |          1        0.01       99.98
         59 |          1        0.01       99.99
         80 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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