Summary statistics for a_c2_20 variable in hosp_rollup2552_96_2002 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c2_20 |        494    230799.4    613002.9    -779119    8146048

by Jean Roth , jroth@nber.org , 10 Sep 2018