Frequencies for d_4_hos_c6_63 variable in hosp_rollup2552_96_1999 dataset :

d_4_hos_c6_ |
         63 |      Freq.     Percent        Cum.
------------+-----------------------------------
        126 |          1        0.02        0.02
        540 |          1        0.02        0.03
      18840 |          1        0.02        0.05
     280881 |          1        0.02        0.07
          . |      6,092       99.93      100.00
------------+-----------------------------------
      Total |      6,096      100.00

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