Summary statistics for mdcl_drctr_prtm_cnt variable in pos1993 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
mdcl~rtm_cnt |     86,978    .0135796    1.976792          0     571.43

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