Summary statistics for d_5_sub2_c5_54 variable in hosp_rollup2552_96_1998 datas Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_5_~2_c5_54 | 22 518.4091 447.6009 1 1957 by Jean Roth , jroth@nber.org , 6 Sep 2018