Summary statistics for g2_c2_22 variable in hosp_rollup2552_96_2007 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- g2_c2_22 | 17 9706904 1.16e+07 -17 3.35e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018