Summary statistics for mdcl_tchnlgst_cnt variable in pos2010 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
mdcl_tchnl~t |    125,821    .2879443    4.478678          0     675.52

by Jean Roth , jroth@nber.org , 17 May 2017