Frequencies for d4_snf_c2_66 variable in hosp_rollup2552_96_1999 dataset :

d4_snf_c2_6 |
          6 |      Freq.     Percent        Cum.
------------+-----------------------------------
       2548 |          1        0.02        0.02
       2790 |          1        0.02        0.03
       5930 |          1        0.02        0.05
       7042 |          1        0.02        0.07
      29500 |          1        0.02        0.08
          . |      6,091       99.92      100.00
------------+-----------------------------------
      Total |      6,096      100.00

by Jean Roth , jroth@nber.org , 7 Sep 2018