Summary statistics for c_1_c6_53 variable in hosp_rollup2552_96_2007 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c6_53 | 4,272 1.93e+07 7.44e+07 1 1.53e+09 by Jean Roth , jroth@nber.org , 21 Apr 2018