Frequencies for d4_hos_c2_67 variable in hosp_rollup2552_96_2007 dataset :

d4_hos_c2_6 |
          7 |      Freq.     Percent        Cum.
------------+-----------------------------------
         26 |          1        0.02        0.02
        170 |          1        0.02        0.03
        340 |          1        0.02        0.05
       3706 |          1        0.02        0.06
    1736285 |          1        0.02        0.08
          . |      6,229       99.92      100.00
------------+-----------------------------------
      Total |      6,234      100.00

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