Summary statistics for a_c2_54 variable in hosp_rollup2552_96_2009 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c2_54 | 1,878 344096.3 2012985 -1324794 7.42e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018