Summary statistics for b_1_c18_5030 variable in snf_rollup2540_96_2008 dataset 

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
b_1_c18_5030 |          1       20966           .      20966      20966

by Jean Roth , jroth@nber.org , 17 Feb 2018