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

       RDWY |
   FUNCTION |
      CLASS |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,069       10.69       10.69
          2 |      1,109       11.09       21.78
          3 |        991        9.91       31.69
          4 |      1,293       12.93       44.62
          5 |        273        2.73       47.35
          6 |        723        7.23       54.58
          9 |          8        0.08       54.66
         11 |        570        5.70       60.36
         12 |        430        4.30       64.66
         13 |      1,737       17.37       82.03
         14 |      1,022       10.22       92.25
         15 |        316        3.16       95.41
         16 |        443        4.43       99.84
         19 |          4        0.04       99.88
         99 |         12        0.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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