Summary statistics for a_c2_2 variable in snf_rollup2540_96_2008 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c2_2 | 7,958 90965.62 354842.1 -9167 2.80e+07 by Jean Roth , jroth@nber.org , 17 Feb 2018