Summary statistics for spch_pthlgst_cntrct_cnt variable in pos2007 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
spch_~ct_cnt |    117,712    .0742188    4.209088          0     999.99

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