Summary statistics for miper dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- st_case | 66,246 275439.7 160843.7 10001 560140 veh_no | 66,246 1.193657 .7798173 0 23 per_no | 66,246 1.022839 .3278974 1 25 year | 66,246 1984 0 1984 1984 p1 | 66,246 6.217643 9.398832 0 94 -------------+--------------------------------------------------------- p2 | 66,246 6.140175 9.365693 0 94 p3 | 66,246 6.122528 9.34633 0 94 p4 | 66,246 6.199061 9.383448 0 94 p5 | 66,246 6.213643 9.420021 0 94 p6 | 66,246 6.247668 9.436394 0 94 -------------+--------------------------------------------------------- p7 | 66,246 6.129713 9.415088 0 94 p8 | 66,246 6.149971 9.358975 0 94 p9 | 66,246 6.192676 9.384148 0 94 p10 | 66,246 6.211998 9.380649 0 94 by Jean Roth , jroth@nber.org , 18 Apr 2016