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

         a9 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,308       43.08       43.08
          1 |         55        0.55       43.63
          2 |         83        0.83       44.46
          3 |         96        0.96       45.42
          4 |         79        0.79       46.21
          5 |        124        1.24       47.45
          6 |        126        1.26       48.71
          7 |        138        1.38       50.09
          8 |        176        1.76       51.85
          9 |        183        1.83       53.68
         10 |        192        1.92       55.60
         11 |        237        2.37       57.97
         12 |        246        2.46       60.43
         13 |        252        2.52       62.95
         14 |        242        2.42       65.37
         15 |        264        2.64       68.01
         16 |        305        3.05       71.06
         17 |        285        2.85       73.91
         18 |        307        3.07       76.98
         19 |        253        2.53       79.51
         20 |        247        2.47       81.98
         21 |        257        2.57       84.55
         22 |        231        2.31       86.86
         23 |        199        1.99       88.85
         24 |        166        1.66       90.51
         25 |        161        1.61       92.12
         26 |        125        1.25       93.37
         27 |        113        1.13       94.50
         28 |        113        1.13       95.63
         29 |         76        0.76       96.39
         30 |         66        0.66       97.05
         31 |         62        0.62       97.67
         32 |         40        0.40       98.07
         33 |         32        0.32       98.39
         34 |         32        0.32       98.71
         35 |         30        0.30       99.01
         36 |         14        0.14       99.15
         37 |         13        0.13       99.28
         38 |         16        0.16       99.44
         39 |          8        0.08       99.52
         40 |          6        0.06       99.58
         41 |          6        0.06       99.64
         42 |          5        0.05       99.69
         43 |          2        0.02       99.71
         44 |          8        0.08       99.79
         45 |          4        0.04       99.83
         46 |          1        0.01       99.84
         47 |          2        0.02       99.86
         48 |          2        0.02       99.88
         49 |          1        0.01       99.89
         50 |          2        0.02       99.91
         51 |          1        0.01       99.92
         52 |          3        0.03       99.95
         53 |          2        0.02       99.97
         56 |          1        0.01       99.98
         58 |          1        0.01       99.99
         66 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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