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

    EVENT 1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        127        1.27        1.27
          4 |          1        0.01        1.28
          5 |         38        0.38        1.66
          6 |          2        0.02        1.68
          7 |         12        0.12        1.80
          8 |        913        9.13       10.93
          9 |        173        1.73       12.66
         10 |         37        0.37       13.03
         11 |         14        0.14       13.17
         12 |      4,757       47.57       60.74
         13 |          4        0.04       60.78
         14 |         21        0.21       60.99
         15 |         29        0.29       61.28
         16 |          7        0.07       61.35
         18 |         21        0.21       61.56
         21 |          1        0.01       61.57
         23 |          1        0.01       61.58
         24 |         11        0.11       61.69
         25 |         11        0.11       61.80
         26 |          2        0.02       61.82
         27 |          2        0.02       61.84
         28 |          3        0.03       61.87
         31 |          1        0.01       61.88
         32 |          2        0.02       61.90
         33 |         25        0.25       62.15
         34 |          1        0.01       62.16
         35 |          3        0.03       62.19
         39 |          4        0.04       62.23
         41 |          2        0.02       62.25
         42 |          1        0.01       62.26
         43 |          3        0.03       62.29
         44 |          4        0.04       62.33
         45 |          3        0.03       62.36
         46 |          1        0.01       62.37
         48 |          1        0.01       62.38
         50 |          1        0.01       62.39
         51 |          4        0.04       62.43
         54 |        108        1.08       63.51
         55 |          3        0.03       63.54
         60 |          7        0.07       63.61
         61 |         78        0.78       64.39
         63 |      1,620       16.20       80.59
         64 |        650        6.50       87.09
         65 |      1,217       12.17       99.26
         66 |          1        0.01       99.27
         67 |         15        0.15       99.42
         99 |         58        0.58      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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