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

         a1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,827       58.27       58.27
          1 |         47        0.47       58.74
          2 |         76        0.76       59.50
          3 |         79        0.79       60.29
          4 |         60        0.60       60.89
          5 |         81        0.81       61.70
          6 |         94        0.94       62.64
          7 |        109        1.09       63.73
          8 |        129        1.29       65.02
          9 |        133        1.33       66.35
         10 |        146        1.46       67.81
         11 |        172        1.72       69.53
         12 |        156        1.56       71.09
         13 |        164        1.64       72.73
         14 |        155        1.55       74.28
         15 |        179        1.79       76.07
         16 |        171        1.71       77.78
         17 |        202        2.02       79.80
         18 |        186        1.86       81.66
         19 |        174        1.74       83.40
         20 |        179        1.79       85.19
         21 |        192        1.92       87.11
         22 |        178        1.78       88.89
         23 |        144        1.44       90.33
         24 |        131        1.31       91.64
         25 |        122        1.22       92.86
         26 |        105        1.05       93.91
         27 |        103        1.03       94.94
         28 |         86        0.86       95.80
         29 |         59        0.59       96.39
         30 |         58        0.58       96.97
         31 |         46        0.46       97.43
         32 |         41        0.41       97.84
         33 |         36        0.36       98.20
         34 |         35        0.35       98.55
         35 |         26        0.26       98.81
         36 |         18        0.18       98.99
         37 |         14        0.14       99.13
         38 |         25        0.25       99.38
         39 |         11        0.11       99.49
         40 |          9        0.09       99.58
         41 |          6        0.06       99.64
         42 |          5        0.05       99.69
         43 |          5        0.05       99.74
         44 |          2        0.02       99.76
         45 |          3        0.03       99.79
         46 |          5        0.05       99.84
         48 |          4        0.04       99.88
         49 |          1        0.01       99.89
         51 |          3        0.03       99.92
         52 |          1        0.01       99.93
         54 |          1        0.01       99.94
         55 |          2        0.02       99.96
         58 |          1        0.01       99.97
         66 |          1        0.01       99.98
         71 |          1        0.01       99.99
         72 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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