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

    Roadway |
   Function |
      Class |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        836        8.36        8.36
          2 |      1,212       12.12       20.48
          3 |      1,113       11.13       31.61
          4 |      1,304       13.04       44.65
          5 |        172        1.72       46.37
          6 |        965        9.65       56.02
         11 |        521        5.21       61.23
         12 |        312        3.12       64.35
         13 |      1,450       14.50       78.85
         14 |      1,269       12.69       91.54
         15 |        251        2.51       94.05
         16 |        595        5.95      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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