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

   Footnote |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,952       19.52       19.52
          4 |          1        0.01       19.53
          5 |      1,458       14.58       34.11
          7 |        704        7.04       41.15
         19 |        264        2.64       43.79
          . |      5,621       56.21      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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