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

  Number of |
  Occupants |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         28        0.28        0.28
          1 |      5,699       56.99       57.27
          2 |      2,479       24.79       82.06
          3 |        851        8.51       90.57
          4 |        444        4.44       95.01
          5 |        195        1.95       96.96
          6 |         87        0.87       97.83
          7 |         30        0.30       98.13
          8 |         17        0.17       98.30
          9 |         14        0.14       98.44
         10 |          7        0.07       98.51
         11 |          2        0.02       98.53
         12 |          2        0.02       98.55
         13 |          1        0.01       98.56
         15 |          1        0.01       98.57
         16 |          1        0.01       98.58
         18 |          1        0.01       98.59
         20 |          1        0.01       98.60
         24 |          1        0.01       98.61
         31 |          1        0.01       98.62
         35 |          1        0.01       98.63
         97 |         14        0.14       98.77
         99 |        123        1.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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