Summary statistics for c_1_c6_55 variable in hosp_rollup2552_96_2007 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c6_55 | 5,602 1.80e+07 3.80e+07 1 4.83e+08 by Jean Roth , jroth@nber.org , 21 Apr 2018