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

       RDWY |
   FUNCTION |
      CLASS |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,199       11.99       11.99
          2 |      1,267       12.67       24.66
          3 |        894        8.94       33.60
          4 |      1,115       11.15       44.75
          5 |        218        2.18       46.93
          6 |        656        6.56       53.49
          9 |         50        0.50       53.99
         11 |        634        6.34       60.33
         12 |        605        6.05       66.38
         13 |      1,433       14.33       80.71
         14 |      1,115       11.15       91.86
         15 |        363        3.63       95.49
         16 |        382        3.82       99.31
         19 |         26        0.26       99.57
         99 |         43        0.43      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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