Summary statistics for snf_alpha2540_96_2006_long dataset : by Jean Roth , jroth@nber.org , 17 Feb 2018 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- rpt_rec_num | 1,441,557 303717.9 19196.97 247492 435682 wksht_cd | 0 line_num | 0 clmn_num | 0 alphnmrc_i~t | 0 by Jean Roth , jroth@nber.org , 17 Feb 2018