Summary statistics for d_2_sub1_c6_42 variable in hosp_rollup2552_96_2009 datas Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_2_~1_c6_42 | 42 117.5476 325.6213 1 1956 by Jean Roth , jroth@nber.org , 21 Apr 2018