Summary statistics for d4_sub2_c2_55 variable in hosp_rollup2552_96_2009 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d4_sub2_c2~5 | 577 145995.4 264603.6 5 2489230 by Jean Roth , jroth@nber.org , 21 Apr 2018