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

       RDWY |
   FUNCTION |
      CLASS |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        951        9.51        9.51
          2 |      1,090       10.90       20.41
          3 |        954        9.54       29.95
          4 |      1,038       10.38       40.33
          5 |        255        2.55       42.88
          6 |        692        6.92       49.80
          9 |         22        0.22       50.02
         11 |        826        8.26       58.28
         12 |        854        8.54       66.82
         13 |      1,295       12.95       79.77
         14 |      1,134       11.34       91.11
         15 |        434        4.34       95.45
         16 |        420        4.20       99.65
         19 |         19        0.19       99.84
         99 |         16        0.16      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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