Frequencies for e_b_snf_c1_30 variable in hosp_rollup2552_96_2002 dataset :

e_b_snf_c1_ |
         30 |      Freq.     Percent        Cum.
------------+-----------------------------------
      -1747 |          1        0.02        0.02
        138 |          1        0.02        0.03
        497 |          1        0.02        0.05
          . |      6,121       99.95      100.00
------------+-----------------------------------
      Total |      6,124      100.00

by Jean Roth , jroth@nber.org , 10 Sep 2018