Summary statistics for demo2006q2 dataset : by Jean Roth , jroth@nber.org , 18 Dec 2015 Variable | Obs Mean Std. Dev. Min Max -------------+-------------------------------------------------------- primaryid | 17848 4972419 7712.761 4871816 4982854 caseid | 17848 5967907 202735.2 3148796 6146018 i_f_code | 0 i_f_code_num | 17848 71.02308 .9997615 70 72 foll_seq | 1570 1.661146 1.55988 1 29 -------------+-------------------------------------------------------- image | 0 event_dt | 14267 2.00e+07 24734.93 1.96e+07 2.01e+07 event_dt_num | 14267 16135.37 901.7375 -92 16913 mfr_dt | 16572 2.01e+07 6029.454 1.99e+07 2.01e+07 mfr_dt_num | 16572 16805.65 184.6483 12344 16915 -------------+-------------------------------------------------------- fda_dt | 17848 2.01e+07 18.74837 2.01e+07 2.01e+07 fda_dt_num | 17848 16903.54 8.362637 16805 16916 rept_cod | 0 rept_cod_num | 17848 699658.9 13479.16 687382 806982 mfr_num | 0 -------------+-------------------------------------------------------- mfr_sndr | 0 age | 12980 195.4624 1823.118 0 34111 age_cod | 0 sex | 0 e_sub | 0 -------------+-------------------------------------------------------- wt | 8761 91.39941 44.95496 0 876.22 wt_cod | 0 rept_dt | 17819 2.01e+07 722.3519 2.00e+07 2.01e+07 rept_dt_num | 17819 16901.51 25.69181 13999 16917 occp_cod | 0 -------------+-------------------------------------------------------- death_dt | 1946 2.00e+07 19301.38 1.99e+07 2.01e+07 to_mfr | 0 confid | 0 reporter_c~y | 0 occp_cod_num | 15470 7649.296 387.6552 6778 8072 by Jean Roth , jroth@nber.org , 18 Dec 2015