Summary statistics for demo2005q2 dataset : by Jean Roth , jroth@nber.org , 18 Dec 2015 Variable | Obs Mean Std. Dev. Min Max -------------+-------------------------------------------------------- primaryid | 80614 4664087 26526.81 4548241 4799765 caseid | 80614 5739670 304127.8 3028537 5910165 i_f_code | 0 i_f_code_num | 80596 71.43253 .9016263 70 72 foll_seq | 0 -------------+-------------------------------------------------------- image | 0 event_dt | 56275 2.00e+07 22542.87 1.92e+07 2.01e+07 event_dt_num | 56275 16181.47 821.5599 -12791 16674 mfr_dt | 73533 2.01e+07 207652.2 1.98e+07 6.20e+07 mfr_dt_num | 73533 16561.76 7583.756 5953 1548728 -------------+-------------------------------------------------------- fda_dt | 80614 2.01e+07 107.4983 2.01e+07 2.01e+07 fda_dt_num | 80614 16566.45 33.49001 16439 16617 rept_cod | 0 rept_cod_num | 80614 725671.9 47946.63 687382 806982 mfr_num | 0 -------------+-------------------------------------------------------- mfr_sndr | 0 age | 55094 156.0918 1570.668 -4 34061 age_cod | 0 sex | 0 e_sub | 0 -------------+-------------------------------------------------------- wt | 27454 106.8535 79.56113 0 7536 wt_cod | 0 rept_dt | 79900 2.01e+07 35380.49 1.99e+07 3.00e+07 rept_dt_num | 79900 16560.3 1292.581 12177 381586 occp_cod | 0 -------------+-------------------------------------------------------- death_dt | 5610 2.01e+07 707215.7 1.92e+07 7.20e+07 to_mfr | 0 confid | 0 occp_cod_num | 57369 7612.121 451.6552 6778 8072 by Jean Roth , jroth@nber.org , 18 Dec 2015