Summary statistics for spch_pthlgst_cntrct_cnt variable in pos2013 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
spch_~ct_cnt |     38,155    .3205842     7.47613          0     999.99

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