Summary statistics for a_c6_21 variable in hosp_rollup2552_96_2004 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c6_21 |        198   -921778.6     2159597  -1.88e+07    6461678

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