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

    EVENT 6 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,445       94.45       94.45
          1 |        157        1.57       96.02
          2 |         43        0.43       96.45
          3 |         15        0.15       96.60
          7 |          1        0.01       96.61
          8 |          8        0.08       96.69
         11 |          1        0.01       96.70
         12 |         15        0.15       96.85
         13 |          6        0.06       96.91
         14 |         22        0.22       97.13
         15 |          1        0.01       97.14
         17 |          4        0.04       97.18
         18 |          4        0.04       97.22
         19 |          8        0.08       97.30
         21 |          4        0.04       97.34
         22 |          1        0.01       97.35
         23 |          1        0.01       97.36
         24 |          8        0.08       97.44
         25 |          3        0.03       97.47
         27 |          6        0.06       97.53
         29 |          4        0.04       97.57
         30 |         12        0.12       97.69
         31 |          6        0.06       97.75
         32 |          2        0.02       97.77
         33 |          9        0.09       97.86
         34 |          9        0.09       97.95
         35 |          9        0.09       98.04
         37 |          2        0.02       98.06
         38 |         36        0.36       98.42
         39 |          7        0.07       98.49
         40 |          1        0.01       98.50
         41 |          2        0.02       98.52
         42 |         75        0.75       99.27
         43 |         14        0.14       99.41
         46 |          2        0.02       99.43
         51 |          4        0.04       99.47
         54 |          7        0.07       99.54
         60 |          2        0.02       99.56
         62 |          2        0.02       99.58
         63 |          4        0.04       99.62
         64 |          8        0.08       99.70
         65 |          2        0.02       99.72
         67 |          9        0.09       99.81
         99 |         19        0.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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