Summary statistics for b_1_c18_5020 variable in snf_rollup2540_96_2000 dataset 

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
b_1_c18_5020 |          6       13986    9897.595         -1      25216

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