Frequencies for iqi_11_aaa_f variable in vwhqi_hosp_ahrq dataset :

IQI_11_AAA_ |
          F |      Freq.     Percent        Cum.
------------+-----------------------------------
            |        624       13.81       13.81
          5 |      3,048       67.45       81.26
          j |        847       18.74      100.00
------------+-----------------------------------
      Total |      4,519      100.00

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