Summary statistics for s3_1_c20_3 variable in snf_rollup2540_96_2005 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
  s3_1_c20_3 |      1,571     39.2718    53.32346          1        597

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