Summary statistics for demo2018q2 dataset : by Jean Roth , jroth@nber.org , 8 Sep 2018 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- primaryid | 457,169 1.54e+08 8.47e+07 3.62e+07 1.49e+09 caseid | 457,169 1.47e+07 595643.9 3617572 1.51e+07 caseversion | 457,169 1.583115 1.669176 1 93 i_f_code | 0 i_f_code_num | 457,169 71.43197 .9018893 70 72 -------------+--------------------------------------------------------- event_dt | 216,225 1.26e+07 9716050 1961 2.02e+07 event_dt_num | 216,225 20860.27 889.9229 -8272 21380 mfr_dt | 440,240 2.02e+07 9319.98 1.90e+07 2.02e+07 mfr_dt_num | 440,240 21215.68 324.6974 -21914 21364 init_fda_dt | 457,169 2.02e+07 5370.208 2.00e+07 2.02e+07 -------------+--------------------------------------------------------- init_fda_d~m | 457,169 21272.49 183.9221 15039 21365 fda_dt | 457,169 2.02e+07 85.64655 2.02e+07 2.02e+07 fda_dt_num | 457,169 21321.47 26.70131 21097 21365 rept_cod | 0 rept_cod_num | 457,169 749443 54408.31 687382 806982 -------------+--------------------------------------------------------- auth_num | 0 mfr_num | 0 mfr_sndr | 0 lit_ref | 0 age | 253,706 183.5173 1760.575 -5 35489 -------------+--------------------------------------------------------- age_cod | 0 age_grp | 0 age_grp_num | 0 sex | 0 e_sub | 0 -------------+--------------------------------------------------------- wt | 81,023 74.70258 26.89607 0 880 wt_cod | 0 rept_dt | 457,005 2.02e+07 83694.56 2010 2.02e+07 rept_dt_num | 456,997 21320.82 29.04538 19582 21366 to_mfr | 0 -------------+--------------------------------------------------------- occp_cod | 0 reporter_c~y | 0 occr_country | 0 occp_cod_num | 447,747 7400.835 555.7616 6778 8072 by Jean Roth , jroth@nber.org , 8 Sep 2018