Summary statistics for miper dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- st_case | 70,915 269948.5 159260.7 10001 560131 veh_no | 70,915 1.228217 .7911337 0 17 per_no | 70,915 1.01898 .2220485 1 12 year | 70,915 1988 0 1988 1988 p1 | 70,915 5.498033 9.203998 0 94 -------------+--------------------------------------------------------- p2 | 70,915 5.462173 9.173662 0 94 p3 | 70,915 5.525474 9.224269 0 94 p4 | 70,915 5.506465 9.220974 0 94 p5 | 70,915 5.476119 9.205684 0 94 p6 | 70,915 5.479997 9.215812 0 94 -------------+--------------------------------------------------------- p7 | 70,915 5.4754 9.204514 0 94 p8 | 70,915 5.540267 9.220954 0 94 p9 | 70,915 5.493704 9.201448 0 94 p10 | 70,915 5.470747 9.184725 0 94 by Jean Roth , jroth@nber.org , 18 Apr 2016