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

    Roadway |
   Function |
      Class |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        907        9.07        9.07
          2 |      1,603       16.03       25.10
          3 |        586        5.86       30.96
          4 |        883        8.83       39.79
          5 |        213        2.13       41.92
          6 |        848        8.48       50.40
          9 |         16        0.16       50.56
         11 |        808        8.08       58.64
         12 |        746        7.46       66.10
         13 |      1,363       13.63       79.73
         14 |        969        9.69       89.42
         15 |        401        4.01       93.43
         16 |        635        6.35       99.78
         99 |         22        0.22      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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