Summary statistics for actvty_profnl_prtm_cnt variable in pos1999 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
a~l_prtm_cnt |     94,568    .1580692    31.83545          0       9775

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