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

         a1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,959       59.59       59.59
          1 |         44        0.44       60.03
          2 |         85        0.85       60.88
          3 |         88        0.88       61.76
          4 |         96        0.96       62.72
          5 |         82        0.82       63.54
          6 |         83        0.83       64.37
          7 |         84        0.84       65.21
          8 |        107        1.07       66.28
          9 |        124        1.24       67.52
         10 |        119        1.19       68.71
         11 |        130        1.30       70.01
         12 |        149        1.49       71.50
         13 |        149        1.49       72.99
         14 |        176        1.76       74.75
         15 |        196        1.96       76.71
         16 |        159        1.59       78.30
         17 |        180        1.80       80.10
         18 |        190        1.90       82.00
         19 |        156        1.56       83.56
         20 |        165        1.65       85.21
         21 |        165        1.65       86.86
         22 |        149        1.49       88.35
         23 |        153        1.53       89.88
         24 |        135        1.35       91.23
         25 |        117        1.17       92.40
         26 |        123        1.23       93.63
         27 |        119        1.19       94.82
         28 |         77        0.77       95.59
         29 |         57        0.57       96.16
         30 |         48        0.48       96.64
         31 |         47        0.47       97.11
         32 |         50        0.50       97.61
         33 |         40        0.40       98.01
         34 |         37        0.37       98.38
         35 |         27        0.27       98.65
         36 |         26        0.26       98.91
         37 |         23        0.23       99.14
         38 |         19        0.19       99.33
         39 |         12        0.12       99.45
         40 |         14        0.14       99.59
         41 |          8        0.08       99.67
         42 |          4        0.04       99.71
         43 |          5        0.05       99.76
         44 |          4        0.04       99.80
         45 |          1        0.01       99.81
         46 |          5        0.05       99.86
         47 |          2        0.02       99.88
         48 |          3        0.03       99.91
         49 |          2        0.02       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