Summary statistics for b_1_c18_5010 variable in snf_rollup2540_96_1999 dataset 

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
b_1_c18_5010 |          1       -8774           .      -8774      -8774

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