Summary statistics for g2_c1_12 variable in hosp_rollup2552_96_2005 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- g2_c1_12 | 90 1.29e+07 1.35e+07 1418737 7.60e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018