Summary statistics for lpn_lvn_prtm_cnt variable in pos2002 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
lpn_lvn_pr~t |    102,269    .5051707    6.388484          0     729.31

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