condition mean min max ZT0-3 113.40643333333334 45.78 202.428 ZT4-7 304.152 304.152 304.152 ZT8-11 121.17165 121.17165 121.17165 ZT12-15 22.998849999999997 22.668999999999997 23.328699999999998 ZT16-19 28.9053 28.9053 28.9053 ZT20-23 28.741100000000003 28.741100000000003 28.741100000000003