Summary statistics for d_1_c2_23 variable in snf_rollup2540_96_2003 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_1_c2_23 | 3,468 28610.58 176884.2 1 1.02e+07 by Jean Roth , jroth@nber.org , 17 Feb 2018