Frequencies for s5_c4_1 variable in prds_hosp10_yr2013 dataset :

    s5_c4_1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         11        0.18        0.18
          2 |          5        0.08        0.26
          3 |          3        0.05        0.30
          4 |          2        0.03        0.34
          5 |          1        0.02        0.35
          7 |          1        0.02        0.37
          8 |          1        0.02        0.38
          9 |          2        0.03        0.42
         11 |          1        0.02        0.43
         13 |          1        0.02        0.45
         14 |          1        0.02        0.46
         15 |          1        0.02        0.48
         21 |          1        0.02        0.50
         22 |          1        0.02        0.51
         30 |          1        0.02        0.53
         32 |          1        0.02        0.54
         45 |          1        0.02        0.56
        154 |          1        0.02        0.58
          . |      6,212       99.42      100.00
------------+-----------------------------------
      Total |      6,248      100.00

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