condition mean min max ZT0-3 492.8 492.8 492.8 ZT4-7 750.1 750.1 750.1 ZT8-11 770.55 770.55 770.55 ZT12-15 752.95 752.95 752.95 ZT16-19 560.25 560.25 560.25 ZT20-23 420.95000000000005 420.95000000000005 420.95000000000005