Summary statistics for miper dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- year | 759 2005 0 2005 2005 st_case | 759 430221.9 127.9157 430001 430437 veh_no | 759 1.044796 .7340898 0 4 per_no | 759 1.017128 .1396251 1 3 p1 | 759 5.368906 9.356943 0 44 -------------+--------------------------------------------------------- p2 | 759 5.318841 9.474646 0 49 p3 | 759 5.29776 9.352289 0 50 p4 | 759 5.312253 9.47229 0 54 p5 | 759 5.4361 9.591158 0 53 p6 | 759 5.247694 9.295035 0 40 -------------+--------------------------------------------------------- p7 | 759 5.515152 9.58558 0 45 p8 | 759 5.40448 9.559205 0 41 p9 | 759 5.201581 9.19821 0 43 p10 | 759 5.30303 9.351979 0 40 by Jean Roth , jroth@nber.org , 18 Apr 2016