Frequencies for marketcoverage variable in busrules2018 dataset :

   Market Coverage |      Freq.     Percent        Cum.
-------------------+-----------------------------------
        Individual |      3,002       69.93       69.93
SHOP (Small Group) |      1,291       30.07      100.00
-------------------+-----------------------------------
             Total |      4,293      100.00

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