Summary statistics for c_1_c6_54 variable in hosp_rollup2552_96_2007 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c6_54 | 1,869 1273397 4277671 1 8.25e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018