Frequencies for s5_c2_2 variable in prds_hosp10_yr2011 dataset :

    s5_c2_2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          2 |          1        0.02        0.02
       2.57 |          1        0.02        0.03
        2.9 |          1        0.02        0.05
          3 |        100        1.63        1.67
        3.1 |          1        0.02        1.69
          7 |          2        0.03        1.72
          9 |          1        0.02        1.74
          . |      6,043       98.26      100.00
------------+-----------------------------------
      Total |      6,150      100.00

by Jean Roth , jroth@nber.org , 24 Aug 2018