Summary statistics for itm_val_num variable in snf_nmrc2540_96_1997_long datase

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
 itm_val_num |  8,664,038    330592.5     6443949  -1.87e+09   2.12e+09

by Jean Roth , jroth@nber.org , 17 Feb 2018