Frequencies for util_cd variable in hcris2552_10_2017 dataset :

utilization |
       code |      Freq.     Percent        Cum.
------------+-----------------------------------
          F |      3,724       99.33       99.33
          L |         12        0.32       99.65
          N |         13        0.35      100.00
------------+-----------------------------------
      Total |      3,749      100.00

by Jean Roth , jroth@nber.org , 25 Oct 2018