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

    EVENT 1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        172        1.72        1.72
          4 |          1        0.01        1.73
          5 |         25        0.25        1.98
          6 |          1        0.01        1.99
          7 |         22        0.22        2.21
          8 |        903        9.03       11.24
          9 |        140        1.40       12.64
         10 |         19        0.19       12.83
         11 |         19        0.19       13.02
         12 |      4,823       48.23       61.25
         13 |         29        0.29       61.54
         14 |         30        0.30       61.84
         15 |         19        0.19       62.03
         16 |         13        0.13       62.16
         17 |          4        0.04       62.20
         18 |         12        0.12       62.32
         19 |          1        0.01       62.33
         20 |          2        0.02       62.35
         21 |          1        0.01       62.36
         23 |          4        0.04       62.40
         24 |         17        0.17       62.57
         25 |          7        0.07       62.64
         27 |          1        0.01       62.65
         28 |          2        0.02       62.67
         29 |          3        0.03       62.70
         30 |          4        0.04       62.74
         31 |          1        0.01       62.75
         32 |          4        0.04       62.79
         33 |         95        0.95       63.74
         34 |         11        0.11       63.85
         35 |          4        0.04       63.89
         36 |          3        0.03       63.92
         38 |          1        0.01       63.93
         39 |          4        0.04       63.97
         41 |          1        0.01       63.98
         42 |         11        0.11       64.09
         43 |          6        0.06       64.15
         44 |          3        0.03       64.18
         45 |          3        0.03       64.21
         46 |          6        0.06       64.27
         47 |          1        0.01       64.28
         50 |          2        0.02       64.30
         51 |          2        0.02       64.32
         52 |          2        0.02       64.34
         53 |          1        0.01       64.35
         54 |         72        0.72       65.07
         60 |          9        0.09       65.16
         61 |         44        0.44       65.60
         62 |          2        0.02       65.62
         63 |      1,507       15.07       80.69
         64 |        852        8.52       89.21
         65 |      1,026       10.26       99.47
         66 |          4        0.04       99.51
         67 |          8        0.08       99.59
         99 |         41        0.41      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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