condition mean min max ZT0-3 748.4 748.4 748.4 ZT4-7 680.2 680.2 680.2 ZT8-11 716.6500000000001 716.6500000000001 716.6500000000001 ZT12-15 759.2 759.2 759.2 ZT16-19 747.25 747.25 747.25 ZT20-23 666.9 666.9 666.9