Frequencies for overallstarratingstr variable in mmp2017 dataset :

        Overall Star Rating |      Freq.     Percent        Cum.
----------------------------+-----------------------------------
  Not enough data available |        479       74.26       74.26
Plan too new to be measured |        166       25.74      100.00
----------------------------+-----------------------------------
                      Total |        645      100.00

by Jean Roth , jroth@nber.org , 6 Dec 2016