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

       RDWY |
   FUNCTION |
      CLASS |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,226       12.26       12.26
          2 |      1,027       10.27       22.53
          3 |        809        8.09       30.62
          4 |      1,368       13.68       44.30
          5 |        214        2.14       46.44
          6 |        957        9.57       56.01
          9 |         38        0.38       56.39
         11 |        635        6.35       62.74
         12 |        422        4.22       66.96
         13 |      1,613       16.13       83.09
         14 |        924        9.24       92.33
         15 |        308        3.08       95.41
         16 |        440        4.40       99.81
         19 |         14        0.14       99.95
         99 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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