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

         a1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,767       47.67       47.67
          1 |         49        0.49       48.16
          2 |        102        1.02       49.18
          3 |         63        0.63       49.81
          4 |         89        0.89       50.70
          5 |        115        1.15       51.85
          6 |        120        1.20       53.05
          7 |        123        1.23       54.28
          8 |        158        1.58       55.86
          9 |        153        1.53       57.39
         10 |        163        1.63       59.02
         11 |        188        1.88       60.90
         12 |        217        2.17       63.07
         13 |        234        2.34       65.41
         14 |        249        2.49       67.90
         15 |        239        2.39       70.29
         16 |        257        2.57       72.86
         17 |        248        2.48       75.34
         18 |        240        2.40       77.74
         19 |        250        2.50       80.24
         20 |        215        2.15       82.39
         21 |        220        2.20       84.59
         22 |        234        2.34       86.93
         23 |        181        1.81       88.74
         24 |        194        1.94       90.68
         25 |        165        1.65       92.33
         26 |        136        1.36       93.69
         27 |         98        0.98       94.67
         28 |         81        0.81       95.48
         29 |         77        0.77       96.25
         30 |         70        0.70       96.95
         31 |         65        0.65       97.60
         32 |         48        0.48       98.08
         33 |         37        0.37       98.45
         34 |         35        0.35       98.80
         35 |         28        0.28       99.08
         36 |         13        0.13       99.21
         37 |         16        0.16       99.37
         38 |         17        0.17       99.54
         39 |         11        0.11       99.65
         40 |          5        0.05       99.70
         41 |          6        0.06       99.76
         42 |          4        0.04       99.80
         43 |          6        0.06       99.86
         44 |          2        0.02       99.88
         45 |          1        0.01       99.89
         46 |          1        0.01       99.90
         48 |          2        0.02       99.92
         49 |          2        0.02       99.94
         50 |          1        0.01       99.95
         53 |          3        0.03       99.98
         62 |          1        0.01       99.99
         70 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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