Frequencies for d_4_hos_c1_37 variable in hosp_rollup2552_96_2006 dataset :

d_4_hos_c1_ |
         37 |      Freq.     Percent        Cum.
------------+-----------------------------------
      57513 |          1        0.02        0.02
     125516 |          1        0.02        0.03
     235095 |          1        0.02        0.05
     540428 |          1        0.02        0.06
          . |      6,188       99.94      100.00
------------+-----------------------------------
      Total |      6,192      100.00

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