Summary statistics for d_4_hos_c6_56 variable in hosp_rollup2552_96_2001 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_hos~6_56 | 42 1.66e+07 1.16e+07 774842 4.50e+07 by Jean Roth , jroth@nber.org , 9 Sep 2018