condition mean min max ZT0-3 2616.75 2616.75 2616.75 ZT4-7 5116.9 5116.9 5116.9 ZT8-11 5221.25 5221.25 5221.25 ZT12-15 3718.25 3718.25 3718.25 ZT16-19 3350.7 3350.7 3350.7 ZT20-23 3153.85 3153.85 3153.85