Summary statistics for a_c6_20 variable in hosp_rollup2552_96_2011 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c6_20 |          3     -111190    82328.61    -206248     -62670

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