Summary statistics for MDCL_DRCTR_PRTM_CNT variable in pos2011 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
MDCL~RTM_CNT |     37,813    .0160008    .8907648          0        157

by Jean Roth , jroth@nber.org , 19 Apr 2019