Frequencies for d_2_hos_c6_67 variable in hosp_rollup2552_96_1999 dataset :

d_2_hos_c6_ |
         67 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          1        0.02        0.02
         25 |          1        0.02        0.03
         67 |          1        0.02        0.05
        458 |          1        0.02        0.07
        520 |          1        0.02        0.08
          . |      6,091       99.92      100.00
------------+-----------------------------------
      Total |      6,096      100.00

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