Summary statistics for nuclr_mdcn_tchncn_cnt variable in pos2009 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
nuclr_mdcn~t |    122,973     .039604     .561791          0       50.5

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