Summary statistics for d_4_hos_c6_56 variable in hosp_rollup2552_96_2002 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_hos~6_56 | 79 1.86e+07 1.66e+07 1100756 7.29e+07 by Jean Roth , jroth@nber.org , 10 Sep 2018