Summary statistics for d_4_hos_c8_40 variable in hosp_rollup2552_96_2001 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_hos~8_40 | 30 2135952 3306639 1690 1.61e+07 by Jean Roth , jroth@nber.org , 9 Sep 2018