Frequencies for d_4_hos_c2_68 variable in hosp_rollup2552_96_2005 dataset :

d_4_hos_c2_ |
         68 |      Freq.     Percent        Cum.
------------+-----------------------------------
         38 |          1        0.02        0.02
       3746 |          1        0.02        0.03
       5535 |          1        0.02        0.05
       6568 |          1        0.02        0.06
      15742 |          1        0.02        0.08
          . |      6,180       99.92      100.00
------------+-----------------------------------
      Total |      6,185      100.00

by Jean Roth , jroth@nber.org , 21 Apr 2018