Summary statistics for c_1_c6_30 variable in hosp_rollup2552_96_2007 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c6_30 | 754 4.07e+07 9.14e+07 525 1.11e+09 by Jean Roth , jroth@nber.org , 21 Apr 2018