Summary statistics for a_c1_6 variable in hosp_rollup2552_96_2001 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c1_6 | 6,047 4227890 1.60e+07 -228151 5.41e+08 by Jean Roth , jroth@nber.org , 9 Sep 2018