Frequencies for measurename variable in hqi_national_img_avg dataset :

                           Measure Name |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
    Abdomen CT Use of Contrast Material |          1       16.67       16.67
     MRI Lumbar Spine for Low Back Pain |          1       16.67       33.33
            Mammography Follow-up Rates |          1       16.67       50.00
Outpatients who got cardiac imaging s.. |          1       16.67       66.67
Outpatients with brain CT scans who g.. |          1       16.67       83.33
     Thorax CT Use of Contrast Material |          1       16.67      100.00
----------------------------------------+-----------------------------------
                                  Total |          6      100.00

by Jean Roth , jroth@nber.org , 16 Nov 2016