Frequencies for first 10,000 rows of seat_pos variable in person dataset :

    Seating |
   Position |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        862        8.62        8.62
          1 |      5,195       51.95       60.57
          2 |        364        3.64       64.21
          3 |      1,592       15.92       80.13
          4 |        333        3.33       83.46
          5 |        152        1.52       84.98
          6 |        286        2.86       87.84
          7 |          6        0.06       87.90
          8 |          8        0.08       87.98
          9 |          6        0.06       88.04
         10 |         28        0.28       88.32
         13 |        308        3.08       91.40
         14 |          8        0.08       91.48
         15 |         13        0.13       91.61
         99 |        839        8.39      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Apr 2016