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

         a9 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,031       60.31       60.31
          1 |         62        0.62       60.93
          2 |         80        0.80       61.73
          3 |         68        0.68       62.41
          4 |         82        0.82       63.23
          5 |         85        0.85       64.08
          6 |         89        0.89       64.97
          7 |        112        1.12       66.09
          8 |        127        1.27       67.36
          9 |        132        1.32       68.68
         10 |        112        1.12       69.80
         11 |        182        1.82       71.62
         12 |        174        1.74       73.36
         13 |        165        1.65       75.01
         14 |        178        1.78       76.79
         15 |        177        1.77       78.56
         16 |        156        1.56       80.12
         17 |        173        1.73       81.85
         18 |        189        1.89       83.74
         19 |        186        1.86       85.60
         20 |        166        1.66       87.26
         21 |        166        1.66       88.92
         22 |        139        1.39       90.31
         23 |        137        1.37       91.68
         24 |        114        1.14       92.82
         25 |         87        0.87       93.69
         26 |        103        1.03       94.72
         27 |         75        0.75       95.47
         28 |         82        0.82       96.29
         29 |         72        0.72       97.01
         30 |         51        0.51       97.52
         31 |         38        0.38       97.90
         32 |         39        0.39       98.29
         33 |         45        0.45       98.74
         34 |         19        0.19       98.93
         35 |         24        0.24       99.17
         36 |         12        0.12       99.29
         37 |          7        0.07       99.36
         38 |         16        0.16       99.52
         39 |         11        0.11       99.63
         40 |          7        0.07       99.70
         41 |          7        0.07       99.77
         42 |          8        0.08       99.85
         44 |          3        0.03       99.88
         45 |          1        0.01       99.89
         46 |          3        0.03       99.92
         47 |          1        0.01       99.93
         49 |          2        0.02       99.95
         50 |          1        0.01       99.96
         51 |          3        0.03       99.99
         53 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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