condition mean min max ZT0-3 699.9 699.9 699.9 ZT4-7 633.8 633.8 633.8 ZT8-11 660.3 660.3 660.3 ZT12-15 752.55 752.55 752.55 ZT16-19 597.25 597.25 597.25 ZT20-23 575.4000000000001 575.4000000000001 575.4000000000001