Summary statistics for a_c6_61 variable in hosp_rollup2552_96_2010 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_61 | 2,822 -1243788 2371921 -3.25e+07 2.20e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018