condition mean min max ZT0-3 4944.1 4944.1 4944.1 ZT4-7 4153.7 4153.7 4153.7 ZT8-11 3563.35 3563.35 3563.35 ZT12-15 3845.2 3845.2 3845.2 ZT16-19 4213.45 4213.45 4213.45 ZT20-23 4058.05 4058.05 4058.05