Frequencies for s3_1_c1_21 variable in hosp_rollup2552_96_1999 dataset :

 s3_1_c1_21 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         28        0.46        0.46
          2 |         19        0.31        0.77
          3 |          5        0.08        0.85
          4 |         11        0.18        1.03
          5 |          2        0.03        1.07
          6 |          2        0.03        1.10
          7 |          2        0.03        1.13
          8 |          4        0.07        1.20
          9 |          4        0.07        1.26
         10 |          1        0.02        1.28
         11 |          1        0.02        1.30
         12 |          3        0.05        1.35
         14 |          1        0.02        1.36
         15 |          2        0.03        1.39
         18 |          2        0.03        1.43
         19 |          1        0.02        1.44
         20 |          1        0.02        1.46
         21 |          1        0.02        1.48
         25 |          1        0.02        1.49
         26 |          1        0.02        1.51
         38 |          1        0.02        1.53
         45 |          1        0.02        1.54
        163 |          1        0.02        1.56
          . |      6,001       98.44      100.00
------------+-----------------------------------
      Total |      6,096      100.00

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