Summary statistics for c_1_c6_02121 variable in hcris2552_96_1998 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c6_02121 | 2 9230049 1.31e+07 1 1.85e+07 by Jean Roth , jroth@nber.org , 6 Sep 2018