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

    Roadway |
   Function |
      Class |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,038       10.38       10.38
          2 |        478        4.78       15.16
          3 |      3,107       31.07       46.23
          4 |      1,758       17.58       63.81
          5 |        314        3.14       66.95
          6 |      1,296       12.96       79.91
          7 |        247        2.47       82.38
          8 |      1,760       17.60       99.98
          9 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Apr 2016