condition mean min max ZT0-3 5405.15 5405.15 5405.15 ZT4-7 4016.0 4016.0 4016.0 ZT8-11 3766.75 3766.75 3766.75 ZT12-15 2988.8 2988.8 2988.8 ZT16-19 3388.7 3388.7 3388.7 ZT20-23 4719.35 4719.35 4719.35