Summary statistics for a_c6_4 variable in hosp_rollup2552_96_2006 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_4 | 4,019 274182.4 2533437 -1.58e+07 9.17e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018