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

       RDWY |
   FUNCTION |
      CLASS |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,019       10.19       10.19
          2 |      1,004       10.04       20.23
          3 |        994        9.94       30.17
          4 |      1,245       12.45       42.62
          5 |        269        2.69       45.31
          6 |        638        6.38       51.69
          9 |         86        0.86       52.55
         11 |        689        6.89       59.44
         12 |        672        6.72       66.16
         13 |      1,402       14.02       80.18
         14 |      1,079       10.79       90.97
         15 |        413        4.13       95.10
         16 |        428        4.28       99.38
         19 |         36        0.36       99.74
         99 |         26        0.26      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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