Summary statistics for d_1_c5_28 variable in snf_rollup2540_96_2009 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   d_1_c5_28 |          1        7170           .       7170       7170

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