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

    Roadway |
   Function |
      Class |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,028       10.28       10.28
          2 |        395        3.95       14.23
          3 |      2,592       25.92       40.15
          4 |      1,903       19.03       59.18
          5 |        496        4.96       64.14
          6 |      1,289       12.89       77.03
          7 |        112        1.12       78.15
          8 |      2,181       21.81       99.96
          9 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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