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

         a1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,866       58.66       58.66
          1 |         48        0.48       59.14
          2 |         90        0.90       60.04
          3 |         71        0.71       60.75
          4 |         67        0.67       61.42
          5 |         86        0.86       62.28
          6 |         98        0.98       63.26
          7 |        118        1.18       64.44
          8 |        130        1.30       65.74
          9 |        115        1.15       66.89
         10 |        120        1.20       68.09
         11 |        155        1.55       69.64
         12 |        151        1.51       71.15
         13 |        165        1.65       72.80
         14 |        196        1.96       74.76
         15 |        194        1.94       76.70
         16 |        177        1.77       78.47
         17 |        172        1.72       80.19
         18 |        199        1.99       82.18
         19 |        194        1.94       84.12
         20 |        160        1.60       85.72
         21 |        204        2.04       87.76
         22 |        145        1.45       89.21
         23 |        140        1.40       90.61
         24 |        142        1.42       92.03
         25 |        109        1.09       93.12
         26 |        111        1.11       94.23
         27 |         94        0.94       95.17
         28 |         94        0.94       96.11
         29 |         65        0.65       96.76
         30 |         46        0.46       97.22
         31 |         49        0.49       97.71
         32 |         30        0.30       98.01
         33 |         29        0.29       98.30
         34 |         29        0.29       98.59
         35 |         27        0.27       98.86
         36 |         14        0.14       99.00
         37 |         29        0.29       99.29
         38 |         15        0.15       99.44
         39 |         12        0.12       99.56
         40 |         13        0.13       99.69
         41 |         10        0.10       99.79
         42 |          4        0.04       99.83
         43 |          3        0.03       99.86
         44 |          3        0.03       99.89
         45 |          2        0.02       99.91
         46 |          4        0.04       99.95
         47 |          2        0.02       99.97
         53 |          1        0.01       99.98
         54 |          1        0.01       99.99
         56 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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