Summary statistics for d4_sub2_c2_6201 variable in hosp_rollup2552_96_1999 data Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d4~2_c2_6201 | 8 4494.125 5972.059 12 17539 by Jean Roth , jroth@nber.org , 7 Sep 2018