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

         a1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,136       61.36       61.36
          1 |         52        0.52       61.88
          2 |         83        0.83       62.71
          3 |         78        0.78       63.49
          4 |         84        0.84       64.33
          5 |         72        0.72       65.05
          6 |         90        0.90       65.95
          7 |         97        0.97       66.92
          8 |        115        1.15       68.07
          9 |        129        1.29       69.36
         10 |        124        1.24       70.60
         11 |        152        1.52       72.12
         12 |        160        1.60       73.72
         13 |        140        1.40       75.12
         14 |        173        1.73       76.85
         15 |        164        1.64       78.49
         16 |        175        1.75       80.24
         17 |        182        1.82       82.06
         18 |        169        1.69       83.75
         19 |        146        1.46       85.21
         20 |        143        1.43       86.64
         21 |        180        1.80       88.44
         22 |        158        1.58       90.02
         23 |        128        1.28       91.30
         24 |        122        1.22       92.52
         25 |        104        1.04       93.56
         26 |         99        0.99       94.55
         27 |         86        0.86       95.41
         28 |         71        0.71       96.12
         29 |         68        0.68       96.80
         30 |         52        0.52       97.32
         31 |         45        0.45       97.77
         32 |         43        0.43       98.20
         33 |         23        0.23       98.43
         34 |         24        0.24       98.67
         35 |         18        0.18       98.85
         36 |         28        0.28       99.13
         37 |         22        0.22       99.35
         38 |         14        0.14       99.49
         39 |         10        0.10       99.59
         40 |          4        0.04       99.63
         41 |          5        0.05       99.68
         42 |         10        0.10       99.78
         43 |          3        0.03       99.81
         44 |          2        0.02       99.83
         45 |          3        0.03       99.86
         46 |          2        0.02       99.88
         47 |          4        0.04       99.92
         48 |          1        0.01       99.93
         49 |          4        0.04       99.97
         50 |          1        0.01       99.98
         51 |          1        0.01       99.99
         54 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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