Summary statistics for g2_c2_22 variable in hosp_rollup2552_96_2004 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- g2_c2_22 | 20 1.39e+07 1.27e+07 40314 3.84e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018