Summary statistics for d_4_hos_c6_41 variable in hosp_rollup2552_96_2001 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_hos~6_41 | 42 7.10e+07 4.85e+07 4906096 2.06e+08 by Jean Roth , jroth@nber.org , 9 Sep 2018