Summary statistics for a_c6_69 variable in hosp_rollup2552_96_2010 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c6_69 |          1      -39555           .     -39555     -39555

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