Summary statistics for ocptnl_thrpst_prtm_cnt variable in pos2013 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
ocpt~rtm_cnt |     38,155    .0739248    1.219876          0     142.86

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