Summary statistics for a_c6_98 variable in hosp_rollup2552_96_2002 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_98 | 620 -1026255 1.18e+07 -2.36e+08 4.70e+07 by Jean Roth , jroth@nber.org , 10 Sep 2018