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

         a1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,915       59.15       59.15
          1 |         55        0.55       59.70
          2 |         79        0.79       60.49
          3 |         88        0.88       61.37
          4 |         77        0.77       62.14
          5 |         93        0.93       63.07
          6 |         96        0.96       64.03
          7 |        104        1.04       65.07
          8 |        142        1.42       66.49
          9 |        133        1.33       67.82
         10 |        149        1.49       69.31
         11 |        132        1.32       70.63
         12 |        164        1.64       72.27
         13 |        150        1.50       73.77
         14 |        196        1.96       75.73
         15 |        172        1.72       77.45
         16 |        205        2.05       79.50
         17 |        188        1.88       81.38
         18 |        174        1.74       83.12
         19 |        191        1.91       85.03
         20 |        170        1.70       86.73
         21 |        168        1.68       88.41
         22 |        135        1.35       89.76
         23 |        143        1.43       91.19
         24 |        134        1.34       92.53
         25 |        108        1.08       93.61
         26 |        107        1.07       94.68
         27 |         90        0.90       95.58
         28 |         78        0.78       96.36
         29 |         51        0.51       96.87
         30 |         56        0.56       97.43
         31 |         37        0.37       97.80
         32 |         48        0.48       98.28
         33 |         34        0.34       98.62
         34 |         21        0.21       98.83
         35 |         14        0.14       98.97
         36 |         18        0.18       99.15
         37 |         14        0.14       99.29
         38 |         16        0.16       99.45
         39 |         12        0.12       99.57
         40 |         12        0.12       99.69
         41 |          5        0.05       99.74
         42 |          4        0.04       99.78
         43 |          3        0.03       99.81
         44 |          2        0.02       99.83
         45 |          3        0.03       99.86
         46 |          1        0.01       99.87
         47 |          2        0.02       99.89
         48 |          4        0.04       99.93
         49 |          1        0.01       99.94
         51 |          1        0.01       99.95
         58 |          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