Summary statistics for spch_pthlgst_audlgst_cnt variable in pos2016 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
sp~dlgst_cnt |     37,732    .7309472    22.84448          0       4000

by Jean Roth , jroth@nber.org , 10 Jan 2017