Summary statistics for mdcl_tchnlgst_cnt variable in pos2013 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
mdcl_tchnl~t |     12,205    4.155435     16.7742          0     507.53

by Jean Roth , jroth@nber.org , 26 Jan 2016