Summary statistics for d_1_c5_31 variable in snf_rollup2540_96_1998 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   d_1_c5_31 |          1       47748           .      47748      47748

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