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

         a1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,871       58.71       58.71
          1 |         45        0.45       59.16
          2 |         78        0.78       59.94
          3 |         80        0.80       60.74
          4 |         82        0.82       61.56
          5 |         98        0.98       62.54
          6 |         92        0.92       63.46
          7 |        106        1.06       64.52
          8 |        121        1.21       65.73
          9 |        130        1.30       67.03
         10 |        146        1.46       68.49
         11 |        137        1.37       69.86
         12 |        173        1.73       71.59
         13 |        173        1.73       73.32
         14 |        166        1.66       74.98
         15 |        170        1.70       76.68
         16 |        172        1.72       78.40
         17 |        177        1.77       80.17
         18 |        187        1.87       82.04
         19 |        186        1.86       83.90
         20 |        174        1.74       85.64
         21 |        202        2.02       87.66
         22 |        158        1.58       89.24
         23 |        136        1.36       90.60
         24 |        130        1.30       91.90
         25 |        100        1.00       92.90
         26 |        109        1.09       93.99
         27 |        101        1.01       95.00
         28 |         86        0.86       95.86
         29 |         66        0.66       96.52
         30 |         50        0.50       97.02
         31 |         50        0.50       97.52
         32 |         36        0.36       97.88
         33 |         49        0.49       98.37
         34 |         28        0.28       98.65
         35 |         24        0.24       98.89
         36 |         21        0.21       99.10
         37 |         12        0.12       99.22
         38 |         13        0.13       99.35
         39 |          8        0.08       99.43
         40 |         13        0.13       99.56
         41 |          4        0.04       99.60
         42 |          9        0.09       99.69
         43 |          8        0.08       99.77
         44 |          4        0.04       99.81
         45 |          6        0.06       99.87
         46 |          2        0.02       99.89
         47 |          1        0.01       99.90
         48 |          4        0.04       99.94
         51 |          2        0.02       99.96
         52 |          2        0.02       99.98
         53 |          1        0.01       99.99
         58 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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