Frequencies for s3_1_c1_21 variable in hosp_rollup2552_96_1996 dataset :

 s3_1_c1_21 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         27        0.45        0.45
          2 |         15        0.25        0.70
          3 |          4        0.07        0.76
          4 |          8        0.13        0.90
          6 |         10        0.17        1.06
          7 |          2        0.03        1.10
          8 |          3        0.05        1.15
          9 |          3        0.05        1.20
         10 |          3        0.05        1.25
         11 |          2        0.03        1.28
         12 |          3        0.05        1.33
         13 |          2        0.03        1.36
         15 |          1        0.02        1.38
         16 |          2        0.03        1.41
         17 |          1        0.02        1.43
         18 |          2        0.03        1.46
         20 |          1        0.02        1.48
         26 |          1        0.02        1.49
          . |      5,931       98.51      100.00
------------+-----------------------------------
      Total |      6,021      100.00

by Jean Roth , jroth@nber.org , 3 Sep 2018