Summary statistics for a_c6_20 variable in hosp_rollup2552_96_2006 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c6_20 |        617    -1206634     1868622  -2.37e+07       1920

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