Frequencies for first 10,000 rows of seq4 variable in vehicle dataset :

    EVENT 4 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,810       78.10       78.10
          1 |        556        5.56       83.66
          2 |         57        0.57       84.23
          3 |         19        0.19       84.42
          5 |          1        0.01       84.43
          8 |         34        0.34       84.77
          9 |          4        0.04       84.81
         12 |        109        1.09       85.90
         13 |         21        0.21       86.11
         14 |         39        0.39       86.50
         17 |         15        0.15       86.65
         18 |         13        0.13       86.78
         19 |          8        0.08       86.86
         21 |          4        0.04       86.90
         23 |          5        0.05       86.95
         24 |         36        0.36       87.31
         25 |         31        0.31       87.62
         26 |          2        0.02       87.64
         27 |         42        0.42       88.06
         29 |         22        0.22       88.28
         30 |         52        0.52       88.80
         31 |         20        0.20       89.00
         32 |         22        0.22       89.22
         33 |         53        0.53       89.75
         34 |         55        0.55       90.30
         35 |         51        0.51       90.81
         36 |         11        0.11       90.92
         37 |          8        0.08       91.00
         38 |        111        1.11       92.11
         39 |         39        0.39       92.50
         40 |          6        0.06       92.56
         41 |         12        0.12       92.68
         42 |        254        2.54       95.22
         43 |         52        0.52       95.74
         44 |          1        0.01       95.75
         46 |         19        0.19       95.94
         51 |          8        0.08       96.02
         52 |          7        0.07       96.09
         53 |          8        0.08       96.17
         54 |         29        0.29       96.46
         60 |          7        0.07       96.53
         62 |          3        0.03       96.56
         63 |         53        0.53       97.09
         64 |         89        0.89       97.98
         65 |         46        0.46       98.44
         66 |          6        0.06       98.50
         67 |         91        0.91       99.41
         99 |         59        0.59      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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