Summary statistics for a_c2_23 variable in hosp_rollup2552_96_2009 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c2_23 |        804     4521930    1.03e+07   -4215881   1.58e+08

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