condition mean min max ZT0-3 5478.05 5478.05 5478.05 ZT4-7 3954.8 3954.8 3954.8 ZT8-11 4050.6 4050.6 4050.6 ZT12-15 3799.05 3799.05 3799.05 ZT16-19 4734.45 4734.45 4734.45 ZT20-23 6031.3 6031.3 6031.3