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

    Roadway |
   Function |
      Class |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,249       12.49       12.49
          2 |        358        3.58       16.07
          3 |      2,672       26.72       42.79
          4 |      1,861       18.61       61.40
          5 |        441        4.41       65.81
          6 |      1,222       12.22       78.03
          7 |        196        1.96       79.99
          8 |      1,992       19.92       99.91
          9 |          9        0.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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