Summary statistics for demo2012q3 dataset : by Jean Roth , jroth@nber.org , 18 Dec 2015 Variable | Obs Mean Std. Dev. Min Max -------------+-------------------------------------------------------- primaryid | 136332 8554747 42044.28 8480347 8626056 caseid | 136332 8624949 243645.1 3500853 8750738 i_f_code | 0 i_f_code_num | 136332 71.325 .9457172 70 72 foll_seq | 1197 1.54553 1.114952 1 10 -------------+-------------------------------------------------------- image | 0 event_dt | 76773 2.01e+07 28694.76 1.93e+07 2.01e+07 event_dt_num | 76773 18718.36 1058.643 -12134 19232 mfr_dt | 131737 2.01e+07 12188.81 1.98e+07 2.01e+07 mfr_dt_num | 131737 19131.85 445.5363 8207 19232 -------------+-------------------------------------------------------- fda_dt | 136332 2.01e+07 49.6127 2.01e+07 2.01e+07 fda_dt_num | 136332 19203.98 16.19166 19103 19232 rept_cod | 0 rept_cod_num | 136332 734314.3 51197.31 687382 806982 mfr_num | 0 -------------+-------------------------------------------------------- mfr_sndr | 0 age | 86938 130.6051 1332.235 -2 34438 age_cod | 0 sex | 0 e_sub | 0 -------------+-------------------------------------------------------- wt | 34678 81.32412 36.42353 0 720 wt_cod | 0 rept_dt | 136190 2.01e+07 801.6196 2.00e+07 2.01e+07 rept_dt_num | 136190 19202.32 32.90361 14787 19233 occp_cod | 0 -------------+-------------------------------------------------------- to_mfr | 0 confid | 0 reporter_c~y | 0 occp_cod_num | 132377 7350.748 549.1276 6778 8072 by Jean Roth , jroth@nber.org , 18 Dec 2015