Summary statistics for g_c1thr4_9 variable in hosp_rollup2552_96_2011 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- g_c1thr4_9 | 12 -9592591 2.51e+07 -6.99e+07 2.03e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018