Frequencies for dependentmaximumagrule variable in busrules2018 dataset :

     Dependent |
   Maximum Age |
          Rule |      Freq.     Percent        Cum.
---------------+-----------------------------------
            21 |        117        2.73        2.73
            25 |      3,151       73.40       76.12
            26 |        488       11.37       87.49
            27 |         12        0.28       87.77
            29 |        100        2.33       90.10
            30 |        149        3.47       93.57
Not Applicable |        276        6.43      100.00
---------------+-----------------------------------
         Total |      4,293      100.00

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