Frequencies for util_cd variable in hcris2552_96_2010 dataset :

utilization |
       code |      Freq.     Percent        Cum.
------------+-----------------------------------
          F |      3,809       98.91       98.91
          L |         28        0.73       99.64
          N |         14        0.36      100.00
------------+-----------------------------------
      Total |      3,851      100.00

by Jean Roth , jroth@nber.org , 1 Sep 2018