Summary statistics for demo2018q1 dataset : by Jean Roth , jroth@nber.org , 19 Jun 2018 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- primaryid | 412,702 1.48e+08 6.82e+07 4.12e+07 1.44e+09 caseid | 412,702 1.43e+07 579392.4 4123915 1.48e+07 caseversion | 412,702 1.572721 1.476678 1 71 i_f_code | 0 i_f_code_num | 412,702 71.40004 .9165002 70 72 -------------+--------------------------------------------------------- event_dt | 211,550 1.24e+07 9781055 1933 2.02e+07 event_dt_num | 211,550 20687.79 1050.219 -15626 21367 mfr_dt | 391,711 2.02e+07 8248.611 1.99e+07 2.02e+07 mfr_dt_num | 391,711 21146.67 266.5549 11562 21323 init_fda_dt | 412,702 2.02e+07 6018.975 2.00e+07 2.02e+07 -------------+--------------------------------------------------------- init_fda_d~m | 412,702 21173.6 180.4823 16174 21274 fda_dt | 412,702 2.02e+07 83.34536 2.02e+07 2.02e+07 fda_dt_num | 412,702 21228.74 25.24163 21185 21274 rept_cod | 0 rept_cod_num | 412,702 748053.6 54476.29 687382 806982 -------------+--------------------------------------------------------- auth_num | 0 mfr_num | 0 mfr_sndr | 0 lit_ref | 0 age | 228,738 146.211 1471.308 0 34760 -------------+--------------------------------------------------------- age_cod | 0 age_grp | 0 age_grp_num | 0 sex | 0 e_sub | 0 -------------+--------------------------------------------------------- wt | 79,134 75.71642 27.19739 0 441 wt_cod | 0 rept_dt | 412,404 2.02e+07 109066.8 2018 2.02e+07 rept_dt_num | 412,392 21227.15 569.6421 -343973 21274 to_mfr | 0 -------------+--------------------------------------------------------- occp_cod | 0 reporter_c~y | 0 occr_country | 0 occp_cod_num | 407,322 7384.55 552.8446 6778 8072 by Jean Roth , jroth@nber.org , 19 Jun 2018