Summary statistics for lpn_lvn_prtm_cnt variable in pos2018 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
lpn_lvn_pr~t |     38,986    1.136268    9.330274          0     773.93

by Jean Roth , jroth@nber.org , 15 Feb 2019