Frequencies for first 10,000 rows of seq3 variable in vehicle dataset :

    EVENT 3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,190       61.90       61.90
          1 |        758        7.58       69.48
          2 |         80        0.80       70.28
          3 |         13        0.13       70.41
          5 |          5        0.05       70.46
          6 |          1        0.01       70.47
          7 |          7        0.07       70.54
          8 |         52        0.52       71.06
          9 |          2        0.02       71.08
         12 |        328        3.28       74.36
         13 |         24        0.24       74.60
         14 |         52        0.52       75.12
         15 |          1        0.01       75.13
         16 |          3        0.03       75.16
         17 |         15        0.15       75.31
         18 |         14        0.14       75.45
         19 |         14        0.14       75.59
         21 |         18        0.18       75.77
         22 |          3        0.03       75.80
         23 |         15        0.15       75.95
         24 |         91        0.91       76.86
         25 |         69        0.69       77.55
         26 |          5        0.05       77.60
         27 |         80        0.80       78.40
         28 |          3        0.03       78.43
         29 |         41        0.41       78.84
         30 |         71        0.71       79.55
         31 |         35        0.35       79.90
         32 |         40        0.40       80.30
         33 |        169        1.69       81.99
         34 |        106        1.06       83.05
         35 |         76        0.76       83.81
         36 |         19        0.19       84.00
         37 |         30        0.30       84.30
         38 |        148        1.48       85.78
         39 |         48        0.48       86.26
         40 |          9        0.09       86.35
         41 |         31        0.31       86.66
         42 |        344        3.44       90.10
         43 |         64        0.64       90.74
         45 |          2        0.02       90.76
         46 |         22        0.22       90.98
         51 |          9        0.09       91.07
         52 |         13        0.13       91.20
         53 |         13        0.13       91.33
         54 |         22        0.22       91.55
         60 |          8        0.08       91.63
         61 |          1        0.01       91.64
         62 |          5        0.05       91.69
         63 |        198        1.98       93.67
         64 |        317        3.17       96.84
         65 |        120        1.20       98.04
         66 |          1        0.01       98.05
         67 |        136        1.36       99.41
         99 |         59        0.59      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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