Summary statistics for actvty_stf_othr_cntrct_cnt variable in pos1997 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
actvty_stf.. |     89,140    .0168604    2.935032          0     857.14

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