Summary statistics for d_2_sub2_c6_56 variable in hosp_rollup2552_96_2007 datas Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_2_~2_c6_56 | 153 580.4444 1026.116 1 6970 by Jean Roth , jroth@nber.org , 21 Apr 2018