Frequencies for d4_sub2_c2_56 variable in hosp_rollup2552_96_2011 dataset :

d4_sub2_c2_ |
         56 |      Freq.     Percent        Cum.
------------+-----------------------------------
     158149 |          1        3.45        3.45
     510813 |          2        6.90       10.34
          . |         26       89.66      100.00
------------+-----------------------------------
      Total |         29      100.00

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