Summary statistics for a_c1_51 variable in hosp_rollup2552_96_2007 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c1_51 | 2,429 397367.5 648541.5 -63278 1.67e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018