Summary statistics for s3_1_c1_21 variable in hosp_rollup2552_96_2009 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
  s3_1_c1_21 |        128    12.41406    21.19037          1        155

by Jean Roth , jroth@nber.org , 21 Apr 2018