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

         a1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,979       59.79       59.79
          1 |         61        0.61       60.40
          2 |         83        0.83       61.23
          3 |         62        0.62       61.85
          4 |         72        0.72       62.57
          5 |         60        0.60       63.17
          6 |         78        0.78       63.95
          7 |         92        0.92       64.87
          8 |        119        1.19       66.06
          9 |        118        1.18       67.24
         10 |        165        1.65       68.89
         11 |        140        1.40       70.29
         12 |        161        1.61       71.90
         13 |        165        1.65       73.55
         14 |        190        1.90       75.45
         15 |        177        1.77       77.22
         16 |        194        1.94       79.16
         17 |        181        1.81       80.97
         18 |        186        1.86       82.83
         19 |        184        1.84       84.67
         20 |        176        1.76       86.43
         21 |        158        1.58       88.01
         22 |        138        1.38       89.39
         23 |        116        1.16       90.55
         24 |        130        1.30       91.85
         25 |        116        1.16       93.01
         26 |        101        1.01       94.02
         27 |         88        0.88       94.90
         28 |         99        0.99       95.89
         29 |         63        0.63       96.52
         30 |         64        0.64       97.16
         31 |         47        0.47       97.63
         32 |         43        0.43       98.06
         33 |         27        0.27       98.33
         34 |         13        0.13       98.46
         35 |         27        0.27       98.73
         36 |         22        0.22       98.95
         37 |         13        0.13       99.08
         38 |         14        0.14       99.22
         39 |         16        0.16       99.38
         40 |         15        0.15       99.53
         41 |          9        0.09       99.62
         42 |          8        0.08       99.70
         43 |          6        0.06       99.76
         44 |          4        0.04       99.80
         45 |          3        0.03       99.83
         46 |          2        0.02       99.85
         47 |          2        0.02       99.87
         48 |          3        0.03       99.90
         49 |          1        0.01       99.91
         50 |          2        0.02       99.93
         51 |          1        0.01       99.94
         53 |          4        0.04       99.98
         54 |          1        0.01       99.99
         65 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016