Summary statistics for actvty_profnl_fttm_cnt variable in pos2004 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
a~l_fttm_cnt |    108,700    .3016304    2.899666          0     250.25

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