Summary statistics for c_1_c6_54 variable in hosp_rollup2552_96_1997 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c6_54 | 2,276 292471 1645723 -547446 6.58e+07 by Jean Roth , jroth@nber.org , 5 Sep 2018