Frequencies for d_4_hos_c6_66 variable in hosp_rollup2552_96_2007 dataset :

d_4_hos_c6_ |
         66 |      Freq.     Percent        Cum.
------------+-----------------------------------
        438 |          1        0.02        0.02
       1188 |          1        0.02        0.03
       1790 |          1        0.02        0.05
       3087 |          1        0.02        0.07
      21806 |          1        0.02        0.08
      51222 |          1        0.02        0.10
          . |      6,137       99.90      100.00
------------+-----------------------------------
      Total |      6,143      100.00

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