Summary statistics for s3_1_c9_8 variable in snf_rollup2540_96_2003 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   s3_1_c9_8 |          1          51           .         51         51

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