Summary statistics for tchnlgst_asct_dgr_cnt variable in pos2010 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
tchnlgst_a~t |    125,821    .0181219    .8124268          0        200

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