Summary statistics for d_4_hos_c6_37 variable in hosp_rollup2552_96_1998 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_hos~6_37 | 22 2.47e+07 2.92e+07 249552 1.21e+08 by Jean Roth , jroth@nber.org , 6 Sep 2018