Summary statistics for e4_c1_28 variable in hcris2552_10_2013 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
    e4_c1_28 |      1,233    .3331076    .1521159    .000031    .810788

by Jean Roth , jroth@nber.org , 23 Aug 2018