Frequencies for d_5_hos_c9_45 variable in hosp_rollup2552_96_1998 dataset :

d_5_hos_c9_ |
         45 |      Freq.     Percent        Cum.
------------+-----------------------------------
        252 |          1        0.02        0.02
       5629 |          1        0.02        0.03
          . |      6,222       99.97      100.00
------------+-----------------------------------
      Total |      6,224      100.00

by Jean Roth , jroth@nber.org , 6 Sep 2018