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

       RDWY |
   FUNCTION |
      CLASS |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        864        8.64        8.64
          2 |      1,086       10.86       19.50
          3 |      1,061       10.61       30.11
          4 |      1,356       13.56       43.67
          5 |        272        2.72       46.39
          6 |        663        6.63       53.02
          9 |         19        0.19       53.21
         11 |        496        4.96       58.17
         12 |        302        3.02       61.19
         13 |      2,035       20.35       81.54
         14 |      1,021       10.21       91.75
         15 |        293        2.93       94.68
         16 |        474        4.74       99.42
         19 |         26        0.26       99.68
         99 |         32        0.32      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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