Summary statistics for c_1_c7_53 variable in hosp_rollup2552_96_2009 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c7_53 | 4,101 2.01e+07 6.71e+07 3 1.56e+09 by Jean Roth , jroth@nber.org , 21 Apr 2018