Summary statistics for actvty_profnl_cntrct_cnt variable in pos1994 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
actvty~t_cnt |     92,894    .0216876    1.779875          0     428.57

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