condition mean min max ZT0-3 3873.2 3873.2 3873.2 ZT4-7 4923.5 4923.5 4923.5 ZT8-11 4344.9 4344.9 4344.9 ZT12-15 4471.200000000001 4471.200000000001 4471.200000000001 ZT16-19 4292.85 4292.85 4292.85 ZT20-23 3657.3 3657.3 3657.3