Summary statistics for demo2010q3 dataset : by Jean Roth , jroth@nber.org , 18 Dec 2015 Variable | Obs Mean Std. Dev. Min Max -------------+-------------------------------------------------------- primaryid | 209307 6919368 61534.77 6668400 7082601 caseid | 209307 7473502 227740.9 3067688 7816415 i_f_code | 0 i_f_code_num | 209307 71.26377 .9645878 70 72 foll_seq | 0 -------------+-------------------------------------------------------- image | 0 event_dt | 128787 2.01e+07 34670.13 1.20e+07 2.01e+07 event_dt_num | 128787 17828.93 1272.631 -277428 18533 mfr_dt | 202670 2.01e+07 10806.02 1.95e+07 2.01e+07 mfr_dt_num | 202670 18235.05 403.0085 -1968 18554 -------------+-------------------------------------------------------- fda_dt | 209307 2.01e+07 82.4294 2.01e+07 2.01e+07 fda_dt_num | 209307 18487.86 26.58 18353 18535 rept_cod | 0 rept_cod_num | 209307 747779.3 54204.34 687382 806982 mfr_num | 0 -------------+-------------------------------------------------------- mfr_sndr | 0 age | 139484 205.5465 1693.349 -2 34967 age_cod | 0 sex | 0 e_sub | 0 -------------+-------------------------------------------------------- wt | 72289 82.42458 49.54067 0 7806 wt_cod | 0 rept_dt | 209031 2.01e+07 744.2941 2.00e+07 2.01e+07 rept_dt_num | 209031 18484.51 39.12165 15156 18550 occp_cod | 0 -------------+-------------------------------------------------------- to_mfr | 0 confid | 0 reporter_c~y | 0 occp_cod_num | 186341 7375.054 552.8251 6778 8072 by Jean Roth , jroth@nber.org , 18 Dec 2015