Frequencies for first 10,000 rows of a1 variable in miacc dataset :

         a1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,149       61.49       61.49
          1 |         42        0.42       61.91
          2 |         83        0.83       62.74
          3 |         85        0.85       63.59
          4 |         77        0.77       64.36
          5 |         91        0.91       65.27
          6 |         98        0.98       66.25
          7 |         88        0.88       67.13
          8 |        128        1.28       68.41
          9 |        119        1.19       69.60
         10 |        134        1.34       70.94
         11 |        141        1.41       72.35
         12 |        170        1.70       74.05
         13 |        137        1.37       75.42
         14 |        160        1.60       77.02
         15 |        166        1.66       78.68
         16 |        183        1.83       80.51
         17 |        185        1.85       82.36
         18 |        206        2.06       84.42
         19 |        150        1.50       85.92
         20 |        148        1.48       87.40
         21 |        150        1.50       88.90
         22 |        144        1.44       90.34
         23 |        135        1.35       91.69
         24 |        131        1.31       93.00
         25 |        111        1.11       94.11
         26 |         81        0.81       94.92
         27 |         92        0.92       95.84
         28 |         69        0.69       96.53
         29 |         53        0.53       97.06
         30 |         39        0.39       97.45
         31 |         34        0.34       97.79
         32 |         42        0.42       98.21
         33 |         24        0.24       98.45
         34 |         30        0.30       98.75
         35 |         16        0.16       98.91
         36 |         14        0.14       99.05
         37 |         20        0.20       99.25
         38 |         14        0.14       99.39
         39 |         10        0.10       99.49
         40 |         11        0.11       99.60
         41 |          5        0.05       99.65
         42 |          5        0.05       99.70
         43 |          2        0.02       99.72
         44 |          2        0.02       99.74
         45 |          4        0.04       99.78
         46 |          5        0.05       99.83
         47 |          4        0.04       99.87
         48 |          3        0.03       99.90
         49 |          2        0.02       99.92
         50 |          1        0.01       99.93
         53 |          2        0.02       99.95
         55 |          1        0.01       99.96
         58 |          1        0.01       99.97
         59 |          1        0.01       99.98
         60 |          1        0.01       99.99
         70 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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