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

         a1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,950       59.50       59.50
          1 |         44        0.44       59.94
          2 |         81        0.81       60.75
          3 |         82        0.82       61.57
          4 |        101        1.01       62.58
          5 |         83        0.83       63.41
          6 |         91        0.91       64.32
          7 |         87        0.87       65.19
          8 |        109        1.09       66.28
          9 |        101        1.01       67.29
         10 |        131        1.31       68.60
         11 |        147        1.47       70.07
         12 |        145        1.45       71.52
         13 |        149        1.49       73.01
         14 |        172        1.72       74.73
         15 |        198        1.98       76.71
         16 |        165        1.65       78.36
         17 |        185        1.85       80.21
         18 |        198        1.98       82.19
         19 |        175        1.75       83.94
         20 |        161        1.61       85.55
         21 |        158        1.58       87.13
         22 |        143        1.43       88.56
         23 |        154        1.54       90.10
         24 |        151        1.51       91.61
         25 |        113        1.13       92.74
         26 |        119        1.19       93.93
         27 |        108        1.08       95.01
         28 |         72        0.72       95.73
         29 |         53        0.53       96.26
         30 |         52        0.52       96.78
         31 |         37        0.37       97.15
         32 |         48        0.48       97.63
         33 |         38        0.38       98.01
         34 |         30        0.30       98.31
         35 |         34        0.34       98.65
         36 |         28        0.28       98.93
         37 |         27        0.27       99.20
         38 |         15        0.15       99.35
         39 |         11        0.11       99.46
         40 |         13        0.13       99.59
         41 |          9        0.09       99.68
         42 |          3        0.03       99.71
         43 |          5        0.05       99.76
         44 |          4        0.04       99.80
         45 |          4        0.04       99.84
         46 |          2        0.02       99.86
         47 |          1        0.01       99.87
         48 |          2        0.02       99.89
         49 |          1        0.01       99.90
         53 |          1        0.01       99.91
         55 |          1        0.01       99.92
         58 |          1        0.01       99.93
         61 |          1        0.01       99.94
         63 |          1        0.01       99.95
         64 |          2        0.02       99.97
         66 |          1        0.01       99.98
         73 |          1        0.01       99.99
         76 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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