Summary statistics for a_c6_53 variable in hosp_rollup2552_96_2007 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_53 | 2,485 -383230.6 2006674 -7.58e+07 4347040 by Jean Roth , jroth@nber.org , 21 Apr 2018