Summary statistics for nuclr_mdcn_tchncn_cnt variable in pos2007 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
nuclr_mdcn~t |    117,712    .0249511    .4229482          0         40

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