Summary statistics for d4_sub1_c2_55 variable in hosp_rollup2552_96_2001 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d4_sub1_c2~5 | 1,730 89283.67 211341.6 6 3469396 by Jean Roth , jroth@nber.org , 9 Sep 2018