Frequencies for first 10,000 rows of seq6 variable in vehicle dataset :

    EVENT 6 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,376       93.76       93.76
          1 |        173        1.73       95.49
          2 |         58        0.58       96.07
          3 |         15        0.15       96.22
          8 |         12        0.12       96.34
         12 |         18        0.18       96.52
         13 |         10        0.10       96.62
         14 |         23        0.23       96.85
         17 |          1        0.01       96.86
         18 |          7        0.07       96.93
         19 |         10        0.10       97.03
         21 |          2        0.02       97.05
         23 |          1        0.01       97.06
         24 |          9        0.09       97.15
         25 |          5        0.05       97.20
         26 |          1        0.01       97.21
         27 |          7        0.07       97.28
         29 |          7        0.07       97.35
         30 |         13        0.13       97.48
         31 |          2        0.02       97.50
         32 |          1        0.01       97.51
         33 |          8        0.08       97.59
         34 |         17        0.17       97.76
         35 |          7        0.07       97.83
         36 |          2        0.02       97.85
         37 |          2        0.02       97.87
         38 |         42        0.42       98.29
         39 |         11        0.11       98.40
         40 |          1        0.01       98.41
         41 |          7        0.07       98.48
         42 |         78        0.78       99.26
         43 |          8        0.08       99.34
         46 |          2        0.02       99.36
         51 |          1        0.01       99.37
         53 |          4        0.04       99.41
         54 |          7        0.07       99.48
         60 |          1        0.01       99.49
         62 |          1        0.01       99.50
         63 |          7        0.07       99.57
         64 |         17        0.17       99.74
         65 |          3        0.03       99.77
         67 |         11        0.11       99.88
         99 |         12        0.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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