Summary statistics for a_c6_3 variable in hosp_rollup2552_96_2007 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_3 | 4,872 -366688.8 3179399 -3.53e+07 1.03e+08 by Jean Roth , jroth@nber.org , 21 Apr 2018