Frequencies for d_4_hos_c6_66 variable in hosp_rollup2552_96_2003 dataset :

d_4_hos_c6_ |
         66 |      Freq.     Percent        Cum.
------------+-----------------------------------
        380 |          1        0.02        0.02
        652 |          1        0.02        0.03
       4807 |          1        0.02        0.05
      10509 |          1        0.02        0.07
          . |      6,090       99.93      100.00
------------+-----------------------------------
      Total |      6,094      100.00

by Jean Roth , jroth@nber.org , 20 Jan 2017