Frequencies for first 10,000 rows of seq1 variable in vehicle dataset :

    EVENT 1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        184        1.84        1.84
          2 |          1        0.01        1.85
          5 |         38        0.38        2.23
          6 |          2        0.02        2.25
          7 |         26        0.26        2.51
          8 |      1,008       10.08       12.59
          9 |        187        1.87       14.46
         10 |         25        0.25       14.71
         11 |         20        0.20       14.91
         12 |      4,561       45.61       60.52
         13 |          7        0.07       60.59
         14 |         16        0.16       60.75
         15 |         52        0.52       61.27
         16 |          4        0.04       61.31
         17 |          2        0.02       61.33
         18 |         23        0.23       61.56
         19 |          1        0.01       61.57
         24 |          2        0.02       61.59
         25 |          5        0.05       61.64
         26 |          3        0.03       61.67
         28 |          1        0.01       61.68
         30 |          4        0.04       61.72
         31 |          2        0.02       61.74
         32 |          1        0.01       61.75
         33 |         23        0.23       61.98
         34 |          1        0.01       61.99
         37 |          1        0.01       62.00
         38 |          1        0.01       62.01
         42 |          5        0.05       62.06
         43 |          4        0.04       62.10
         44 |          4        0.04       62.14
         45 |          3        0.03       62.17
         46 |          2        0.02       62.19
         47 |          3        0.03       62.22
         49 |          2        0.02       62.24
         51 |          4        0.04       62.28
         54 |        101        1.01       63.29
         60 |          2        0.02       63.31
         61 |         58        0.58       63.89
         62 |          1        0.01       63.90
         63 |      1,750       17.50       81.40
         64 |        771        7.71       89.11
         65 |      1,057       10.57       99.68
         66 |          3        0.03       99.71
         67 |          9        0.09       99.80
         99 |         20        0.20      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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