Summary statistics for phone variable in va_hbips_december2016_cms_submission dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
       phone |      1,143    5.54e+09    2.33e+09   2.03e+09   9.89e+09

by Jean Roth , jroth@nber.org , 25 Aug 2017