Summary statistics for d4_sub1_c2_50 variable in hosp_rollup2552_96_2009 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d4_sub1~2_50 | 1,617 718025.9 1620205 12 1.89e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018