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

    Seating |
   Position |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        865        8.65        8.65
          1 |      5,492       54.92       63.57
          2 |        343        3.43       67.00
          3 |      1,785       17.85       84.85
          4 |        369        3.69       88.54
          5 |        150        1.50       90.04
          6 |        298        2.98       93.02
          7 |          6        0.06       93.08
          8 |          7        0.07       93.15
          9 |          5        0.05       93.20
         10 |         14        0.14       93.34
         11 |         64        0.64       93.98
         12 |          3        0.03       94.01
         13 |        316        3.16       97.17
         14 |         17        0.17       97.34
         15 |         14        0.14       97.48
         99 |        252        2.52      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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