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 |      1,180       11.80       20.87
          3 |      1,104       11.04       31.91
          4 |      1,279       12.79       44.70
          5 |        206        2.06       46.76
          6 |        974        9.74       56.50
          9 |          3        0.03       56.53
         11 |        421        4.21       60.74
         12 |        456        4.56       65.30
         13 |      1,505       15.05       80.35
         14 |      1,031       10.31       90.66
         15 |        252        2.52       93.18
         16 |        682        6.82      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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