Frequencies for s5_c1_7 variable in prds_hosp10_yr2011 dataset :

    s5_c1_7 |      Freq.     Percent        Cum.
------------+-----------------------------------
          2 |         87        1.41        1.41
          3 |        130        2.11        3.53
          4 |         35        0.57        4.10
          6 |          3        0.05        4.15
          8 |          1        0.02        4.16
          9 |          1        0.02        4.18
         10 |          1        0.02        4.20
         12 |          3        0.05        4.24
         18 |          2        0.03        4.28
         21 |          1        0.02        4.29
         24 |          1        0.02        4.31
         60 |          1        0.02        4.33
         80 |          1        0.02        4.34
         81 |          1        0.02        4.36
         90 |          1        0.02        4.37
        120 |          1        0.02        4.39
        296 |          1        0.02        4.41
          . |      5,879       95.59      100.00
------------+-----------------------------------
      Total |      6,150      100.00

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