Summary statistics for s3_1_c4_12 variable in prds_hosp10_yr2010 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
  s3_1_c4_12 |          1       21170           .      21170      21170

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