Summary statistics for a_c1_6360 variable in hosp_rollup2552_96_2009 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c1_6360 | 3 1.56e+07 1.32e+07 1884047 2.82e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018