Frequencies for d4_snf_c2_41 variable in hosp_rollup2552_96_2011 dataset :

d4_snf_c2_4 |
          1 |      Freq.     Percent        Cum.
------------+-----------------------------------
        570 |          1        3.45        3.45
       2374 |          1        3.45        6.90
          . |         27       93.10      100.00
------------+-----------------------------------
      Total |         29      100.00

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