Summary statistics for s3_1_c20_3 variable in snf_rollup2540_96_2009 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
  s3_1_c20_3 |        854    39.98244    49.35964          1        456

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