Frequencies for d4_hos_c2_39 variable in hosp_rollup2552_96_2011 dataset :

d4_hos_c2_3 |
          9 |      Freq.     Percent        Cum.
------------+-----------------------------------
       6981 |          1        3.45        3.45
      12511 |          1        3.45        6.90
      18251 |          1        3.45       10.34
      22065 |          1        3.45       13.79
      36502 |          1        3.45       17.24
      47684 |          1        3.45       20.69
          . |         23       79.31      100.00
------------+-----------------------------------
      Total |         29      100.00

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