Frequencies for dependentmaximumagrule variable in busrules2017 dataset :

     Dependent |
   Maximum Age |
          Rule |      Freq.     Percent        Cum.
---------------+-----------------------------------
            21 |        339        5.12        5.12
            25 |      4,837       73.07       78.19
            26 |        718       10.85       89.03
            28 |         16        0.24       89.27
            29 |        136        2.05       91.33
            30 |        179        2.70       94.03
Not Applicable |        395        5.97      100.00
---------------+-----------------------------------
         Total |      6,620      100.00

by Jean Roth , jroth@nber.org , 8 Dec 2017