Summary statistics for scl_srvc_othr_stf_cntrct_cnt variable in pos2011 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
scl_sr~t_cnt |     37,813    .0070894    .2960822          0         48

by Jean Roth , jroth@nber.org , 20 Apr 2019