Summary statistics for demo2006q3 dataset : by Jean Roth , jroth@nber.org , 18 Dec 2015 Variable | Obs Mean Std. Dev. Min Max -------------+-------------------------------------------------------- primaryid | 71724 5083830 21733.25 4963115 5160163 caseid | 71724 6085403 184452.9 3042917 6180315 i_f_code | 0 i_f_code_num | 71724 71.37747 .9260263 70 72 foll_seq | 8294 1.504823 1.128824 0 24 -------------+-------------------------------------------------------- image | 0 event_dt | 50299 2.01e+07 22344.31 1.91e+07 2.01e+07 event_dt_num | 50299 16654.27 821.572 -19580 17077 mfr_dt | 66967 2.01e+07 5084.103 1.99e+07 2.01e+07 mfr_dt_num | 66967 16943.33 185.7195 11325 17072 -------------+-------------------------------------------------------- fda_dt | 71724 2.01e+07 80.05881 2.01e+07 2.01e+07 fda_dt_num | 71724 17026.19 25.37104 16894 17073 rept_cod | 0 rept_cod_num | 71724 726913.8 48325.14 687382 806982 mfr_num | 0 -------------+-------------------------------------------------------- mfr_sndr | 0 age | 49514 219.0353 1979.349 0 33762 age_cod | 0 sex | 0 e_sub | 0 -------------+-------------------------------------------------------- wt | 24446 111.7411 73.38919 0 2880 wt_cod | 0 rept_dt | 71500 2.01e+07 651.0668 2.00e+07 2.01e+07 rept_dt_num | 71500 17020.01 39.21441 13880 17080 occp_cod | 0 -------------+-------------------------------------------------------- death_dt | 5280 2.01e+07 21988.68 1.92e+07 2.01e+07 to_mfr | 0 confid | 0 reporter_c~y | 0 occp_cod_num | 58622 7471.886 531.1163 6778 8072 by Jean Roth , jroth@nber.org , 18 Dec 2015