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

       RDWY |
   FUNCTION |
      CLASS |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,102       11.02       11.02
          2 |      1,274       12.74       23.76
          3 |        997        9.97       33.73
          4 |      1,150       11.50       45.23
          5 |        211        2.11       47.34
          6 |        650        6.50       53.84
          9 |         35        0.35       54.19
         11 |        738        7.38       61.57
         12 |        594        5.94       67.51
         13 |      1,421       14.21       81.72
         14 |        966        9.66       91.38
         15 |        428        4.28       95.66
         16 |        344        3.44       99.10
         19 |         36        0.36       99.46
         99 |         54        0.54      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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