Summary statistics for d4_sub1_c2_6201 variable in hosp_rollup2552_96_2004 data Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d4~1_c2_6201 | 27 17942.56 34621.67 1 156894 by Jean Roth , jroth@nber.org , 21 Apr 2018