Summary statistics for g_c1thr4_4 variable in hosp_rollup2552_96_2004 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- g_c1thr4_4 | 5,920 2.45e+07 4.80e+07 -1.15e+07 9.74e+08 by Jean Roth , jroth@nber.org , 21 Apr 2018