Frequencies for d4_hos_c2_47 variable in hosp_rollup2552_96_2011 dataset :

d4_hos_c2_4 |
          7 |      Freq.     Percent        Cum.
------------+-----------------------------------
       4104 |          1        3.45        3.45
      87503 |          1        3.45        6.90
     168012 |          2        6.90       13.79
     396553 |          1        3.45       17.24
     474382 |          1        3.45       20.69
     499669 |          1        3.45       24.14
          . |         22       75.86      100.00
------------+-----------------------------------
      Total |         29      100.00

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