Summary statistics for s3_1_c20_3 variable in snf_rollup2540_96_2002 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
  s3_1_c20_3 |      3,902    40.33111    56.67852          1       1388

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