Summary statistics for d_4_hos_c8_56 variable in hosp_rollup2552_96_2009 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_hos~8_56 | 306 9125321 1.53e+07 1193 1.92e+08 by Jean Roth , jroth@nber.org , 21 Apr 2018