Summary statistics for d_1_c4_29 variable in snf_rollup2540_96_2006 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_1_c4_29 | 9,984 24264.08 202772.7 1 1.98e+07 by Jean Roth , jroth@nber.org , 17 Feb 2018