Summary statistics for hha_alpha1728_94_1994_long dataset : by Jean Roth , jroth@nber.org , 23 Aug 2018 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- rpt_rec_num | 170,283 35622.79 23816.91 164 192209 wksht_cd | 0 line_num | 0 clmn_num | 0 alphnmrc_i~t | 0 by Jean Roth , jroth@nber.org , 23 Aug 2018