Summary statistics for miper dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- year | 826 2003 0 2003 2003 st_case | 826 430239.1 138.0326 430001 430472 veh_no | 826 1.029056 .731377 0 4 per_no | 826 1.024213 .2243259 1 5 p1 | 826 4.923729 8.873672 0 41 -------------+--------------------------------------------------------- p2 | 826 4.720339 8.710593 0 41 p3 | 826 4.684019 8.641586 0 48 p4 | 826 4.788136 8.802061 0 41 p5 | 826 4.779661 8.91644 0 49 p6 | 826 4.865617 8.955383 0 41 -------------+--------------------------------------------------------- p7 | 826 4.669492 8.67031 0 41 p8 | 826 4.627119 8.727744 0 41 p9 | 826 4.784504 8.804382 0 41 p10 | 826 4.855932 8.946024 0 41 by Jean Roth , jroth@nber.org , 18 Apr 2016