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

       RDWY |
   FUNCTION |
      CLASS |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        926        9.26        9.26
          2 |      1,424       14.24       23.50
          3 |        850        8.50       32.00
          4 |      1,409       14.09       46.09
          5 |        214        2.14       48.23
          6 |        624        6.24       54.47
          9 |         26        0.26       54.73
         11 |        569        5.69       60.42
         12 |        360        3.60       64.02
         13 |      1,819       18.19       82.21
         14 |      1,007       10.07       92.28
         15 |        274        2.74       95.02
         16 |        483        4.83       99.85
         19 |          8        0.08       99.93
         99 |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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