Frequencies for first 10,000 rows of footnote variable in hqi_hosp_img dataset 

   Footnote |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      2,290       22.90       22.90
          5 |         72        0.72       23.62
          7 |        854        8.54       32.16
          . |      6,784       67.84      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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