Frequencies for scorestr variable in hqi_national_img_avg dataset :

        Score |      Freq.     Percent        Cum.
--------------+-----------------------------------
          2.4 |          1       16.67       16.67
          2.8 |          1       16.67       33.33
          5.0 |          1       16.67       50.00
          8.9 |          1       16.67       66.67
          9.4 |          1       16.67       83.33
Not Available |          1       16.67      100.00
--------------+-----------------------------------
        Total |          6      100.00

by Jean Roth , jroth@nber.org , 15 Nov 2016