Summary statistics for actvty_profnl_prtm_cnt variable in pos2013 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
a~l_prtm_cnt |     38,155    .3686691    50.08098          0       9775

by Jean Roth , jroth@nber.org , 26 Jan 2016