Frequencies for e_a_hos_c1_25 variable in hosp_rollup2552_96_2003 dataset :

e_a_hos_c1_ |
         25 |      Freq.     Percent        Cum.
------------+-----------------------------------
     -18494 |          1        0.02        0.02
        -22 |          1        0.02        0.03
       9639 |          1        0.02        0.05
          . |      6,117       99.95      100.00
------------+-----------------------------------
      Total |      6,120      100.00

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