Summary statistics for c_1_c6_03142 variable in hcris2552_96_1997 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c6_03142 | 7 9325521 2.12e+07 21 5.72e+07 by Jean Roth , jroth@nber.org , 6 Sep 2018