Summary statistics for a_c1_9 variable in snf_rollup2540_96_2002 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c1_9 | 10,906 191991.8 332563.8 -2403 1.50e+07 by Jean Roth , jroth@nber.org , 17 Feb 2018