Frequencies for first 10,000 rows of a9 variable in miacc dataset :

         a9 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,867       58.67       58.67
          1 |         44        0.44       59.11
          2 |         91        0.91       60.02
          3 |         61        0.61       60.63
          4 |         81        0.81       61.44
          5 |         78        0.78       62.22
          6 |         93        0.93       63.15
          7 |        111        1.11       64.26
          8 |        113        1.13       65.39
          9 |        128        1.28       66.67
         10 |        132        1.32       67.99
         11 |        148        1.48       69.47
         12 |        165        1.65       71.12
         13 |        152        1.52       72.64
         14 |        180        1.80       74.44
         15 |        186        1.86       76.30
         16 |        187        1.87       78.17
         17 |        169        1.69       79.86
         18 |        167        1.67       81.53
         19 |        181        1.81       83.34
         20 |        186        1.86       85.20
         21 |        158        1.58       86.78
         22 |        206        2.06       88.84
         23 |        155        1.55       90.39
         24 |        127        1.27       91.66
         25 |        126        1.26       92.92
         26 |        112        1.12       94.04
         27 |         90        0.90       94.94
         28 |         80        0.80       95.74
         29 |         73        0.73       96.47
         30 |         41        0.41       96.88
         31 |         38        0.38       97.26
         32 |         40        0.40       97.66
         33 |         48        0.48       98.14
         34 |         37        0.37       98.51
         35 |         32        0.32       98.83
         36 |         20        0.20       99.03
         37 |         20        0.20       99.23
         38 |          9        0.09       99.32
         39 |         13        0.13       99.45
         40 |          8        0.08       99.53
         41 |          9        0.09       99.62
         42 |          4        0.04       99.66
         43 |          8        0.08       99.74
         44 |          5        0.05       99.79
         45 |          5        0.05       99.84
         46 |          1        0.01       99.85
         47 |          2        0.02       99.87
         48 |          1        0.01       99.88
         49 |          2        0.02       99.90
         50 |          2        0.02       99.92
         51 |          1        0.01       99.93
         52 |          2        0.02       99.95
         55 |          1        0.01       99.96
         58 |          2        0.02       99.98
         65 |          1        0.01       99.99
         72 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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