Summary statistics for d_4_hos_c1_40 variable in hosp_rollup2552_96_2002 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_hos_c1~0 | 257 177162.9 134129.6 874 774505 by Jean Roth , jroth@nber.org , 10 Sep 2018