Summary statistics for a7_3_c9_2 variable in hosp_rollup2552_96_2002 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a7_3_c9_2 | 203 471945.9 1816181 -1471973 2.26e+07 by Jean Roth , jroth@nber.org , 10 Sep 2018