Summary statistics for miper dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- st_case | 63,228 276355.2 159257.1 10001 560129 veh_no | 63,228 1.33346 1.307278 0 42 per_no | 63,228 1.015104 .2135202 1 13 year | 63,228 1998 0 1998 1998 p1 | 63,228 4.220029 8.408559 0 70 -------------+--------------------------------------------------------- p2 | 63,228 4.242725 8.426346 0 70 p3 | 63,228 4.205479 8.394211 0 70 p4 | 63,228 4.235054 8.430544 0 85 p5 | 63,228 4.233283 8.408316 0 81 p6 | 63,228 4.186262 8.37555 0 70 -------------+--------------------------------------------------------- p7 | 63,228 4.227716 8.439412 0 75 p8 | 63,228 4.211425 8.370967 0 70 p9 | 63,228 4.190738 8.4101 0 70 p10 | 63,228 4.187543 8.376306 0 70 by Jean Roth , jroth@nber.org , 18 Apr 2016