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

       RDWY |
   FUNCTION |
      CLASS |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        890        8.90        8.90
          2 |      1,293       12.93       21.83
          3 |      1,061       10.61       32.44
          4 |      1,273       12.73       45.17
          5 |        169        1.69       46.86
          6 |        832        8.32       55.18
          9 |          2        0.02       55.20
         11 |        496        4.96       60.16
         12 |        314        3.14       63.30
         13 |      1,784       17.84       81.14
         14 |        893        8.93       90.07
         15 |        284        2.84       92.91
         16 |        671        6.71       99.62
         19 |          3        0.03       99.65
         99 |         35        0.35      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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