Summary statistics for s3_1_c1_9 variable in hosp_rollup2552_96_1999 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   s3_1_c1_9 |        193     21.5544    19.97103          3        138

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