Summary statistics for demo2014q3 dataset : by Jean Roth , jroth@nber.org , 6 Apr 2017 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- primaryid | 211,414 1.04e+08 3.38e+07 3.04e+07 1.03e+09 caseid | 211,414 1.03e+07 382295.4 3041652 1.07e+07 caseversion | 211,414 1.532495 1.111317 1 64 i_f_code | 0 i_f_code_num | 211,414 71.31453 .9492498 70 72 -------------+--------------------------------------------------------- event_dt | 116,593 1.28e+07 9627306 1956 2.01e+07 event_dt_num | 116,593 19470.68 975.2304 -5594 20048 mfr_dt | 202,903 2.01e+07 40970.44 2010727 2.01e+07 mfr_dt_num | 202,902 19862.73 285.0242 10748 19996 init_fda_dt | 211,414 2.01e+07 5015.568 2.00e+07 2.01e+07 -------------+--------------------------------------------------------- init_fda_d~m | 211,414 19898.42 189.1665 14013 19996 fda_dt | 211,414 2.01e+07 85.79508 2.01e+07 2.01e+07 fda_dt_num | 211,414 19948.86 26.66004 19638 19996 rept_cod | 0 rept_cod_num | 211,414 739934.8 52989.42 687382 806982 -------------+--------------------------------------------------------- auth_num | 0 mfr_num | 0 mfr_sndr | 0 lit_ref | 0 age | 130,341 130.764 1365.172 -2 35716 -------------+--------------------------------------------------------- age_cod | 0 age_grp | 0 age_grp_num | 0 sex | 0 e_sub | 0 -------------+--------------------------------------------------------- wt | 50,172 82.55762 39.44892 0 2310 wtstr | 0 wt_cod | 0 rept_dt | 211,156 2.01e+07 193544.7 2012 2.02e+07 rept_dt_num | 211,136 19946.33 42.33373 15377 20101 -------------+--------------------------------------------------------- to_mfr | 0 occp_cod | 0 reporter_c~y | 0 occr_country | 0 occp_cod_num | 202,742 7310.949 558.4797 6778 8072 by Jean Roth , jroth@nber.org , 6 Apr 2017