Frequencies for summarystarratingstr variable in pdp2018 dataset :

        Summary Star Rating |      Freq.     Percent        Cum.
----------------------------+-----------------------------------
                            |          1        0.08        0.08
                    2 Stars |        135       11.38       11.47
                  2.5 Stars |        104        8.77       20.24
                    3 Stars |        178       15.01       35.24
                  3.5 Stars |        400       33.73       68.97
                    4 Stars |        331       27.91       96.88
                  4.5 Stars |          4        0.34       97.22
                    5 Stars |         22        1.85       99.07
  Not enough data available |          1        0.08       99.16
Plan too new to be measured |         10        0.84      100.00
----------------------------+-----------------------------------
                      Total |      1,186      100.00

by Jean Roth , jroth@nber.org , 10 Sep 2018