Summary statistics for mdcl_drctr_cntrct_cnt variable in pos2011 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
mdcl_d~t_cnt |     37,813    .1540513    7.316835          0     999.99

by Jean Roth , jroth@nber.org , 20 Apr 2019