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

         a1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,981       59.81       59.81
          1 |         46        0.46       60.27
          2 |         91        0.91       61.18
          3 |         82        0.82       62.00
          4 |         72        0.72       62.72
          5 |         91        0.91       63.63
          6 |        109        1.09       64.72
          7 |         88        0.88       65.60
          8 |        127        1.27       66.87
          9 |         95        0.95       67.82
         10 |        155        1.55       69.37
         11 |        132        1.32       70.69
         12 |        145        1.45       72.14
         13 |        144        1.44       73.58
         14 |        193        1.93       75.51
         15 |        177        1.77       77.28
         16 |        193        1.93       79.21
         17 |        190        1.90       81.11
         18 |        167        1.67       82.78
         19 |        183        1.83       84.61
         20 |        183        1.83       86.44
         21 |        169        1.69       88.13
         22 |        157        1.57       89.70
         23 |        144        1.44       91.14
         24 |        117        1.17       92.31
         25 |        124        1.24       93.55
         26 |        122        1.22       94.77
         27 |         76        0.76       95.53
         28 |         79        0.79       96.32
         29 |         59        0.59       96.91
         30 |         45        0.45       97.36
         31 |         49        0.49       97.85
         32 |         42        0.42       98.27
         33 |         32        0.32       98.59
         34 |         23        0.23       98.82
         35 |         17        0.17       98.99
         36 |          9        0.09       99.08
         37 |         12        0.12       99.20
         38 |         14        0.14       99.34
         39 |         10        0.10       99.44
         40 |         12        0.12       99.56
         41 |          6        0.06       99.62
         42 |         10        0.10       99.72
         43 |          3        0.03       99.75
         44 |          6        0.06       99.81
         45 |          3        0.03       99.84
         46 |          4        0.04       99.88
         48 |          1        0.01       99.89
         49 |          1        0.01       99.90
         50 |          2        0.02       99.92
         51 |          3        0.03       99.95
         52 |          1        0.01       99.96
         53 |          1        0.01       99.97
         57 |          1        0.01       99.98
         67 |          1        0.01       99.99
         77 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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