Summary statistics for a_c1_12 variable in hosp_rollup2552_96_2006 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c1_12 |        640    497298.3    620247.1       -180    4502193

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