Summary statistics for demo2005q1 dataset : by Jean Roth , jroth@nber.org , 18 Dec 2015 Variable | Obs Mean Std. Dev. Min Max -------------+-------------------------------------------------------- primaryid | 76180 4584397 24681.73 4467925 4700566 caseid | 76180 5645212 382549.9 3014261 5844679 i_f_code | 0 i_f_code_num | 76175 71.47673 .8790549 70 72 foll_seq | 0 -------------+-------------------------------------------------------- image | 0 event_dt | 52438 2.00e+07 23973.91 1.90e+07 2.01e+07 event_dt_num | 52438 16030.46 885.6025 -20126 16723 mfr_dt | 69008 2.00e+07 303302.7 1.92e+07 9.20e+07 mfr_dt_num | 69008 16442.1 11076.66 -14930 2644478 -------------+-------------------------------------------------------- fda_dt | 76180 2.00e+07 1495.191 2.00e+07 2.01e+07 fda_dt_num | 76180 16478.61 27.89261 16345 16526 rept_cod | 0 rept_cod_num | 76180 726589.4 48547.11 687382 806982 mfr_num | 0 -------------+-------------------------------------------------------- mfr_sndr | 0 age | 51444 71.30679 668.3524 0 32609 age_cod | 0 sex | 0 e_sub | 0 -------------+-------------------------------------------------------- wt | 24193 101.9524 106.3399 0 13135 wt_cod | 0 rept_dt | 75536 2.00e+07 36496.08 1.99e+07 3.01e+07 rept_dt_num | 75536 16475.39 1329.994 12155 381767 occp_cod | 0 -------------+-------------------------------------------------------- death_dt | 5808 2.00e+07 551034.9 1.92e+07 6.20e+07 to_mfr | 0 confid | 0 occp_cod_num | 54720 7540.663 490.5169 6778 8072 by Jean Roth , jroth@nber.org , 18 Dec 2015