Summary statistics for c_1_c6_03143 variable in hcris2552_96_1999 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c6_03143 | 4 5607404 1.05e+07 420 2.13e+07 by Jean Roth , jroth@nber.org , 7 Sep 2018