Frequencies for util_cd variable in hcris2552_10_2012 dataset :

utilization |
       code |      Freq.     Percent        Cum.
------------+-----------------------------------
          F |      6,129       98.43       98.43
          L |         59        0.95       99.37
          N |         39        0.63      100.00
------------+-----------------------------------
      Total |      6,227      100.00

by Jean Roth , jroth@nber.org , 23 Aug 2018