Summary statistics for mdcl_scl_workr_vlntr_cnt variable in pos2017 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
mdcl_~tr_cnt |      6,522    .0661346    1.058858          0         69

by Jean Roth , jroth@nber.org , 9 Jan 2018