condition mean min max ZT0-3 768.3 768.3 768.3 ZT4-7 621.8 621.8 621.8 ZT8-11 778.4 778.4 778.4 ZT12-15 924.9000000000001 924.9000000000001 924.9000000000001 ZT16-19 958.8 958.8 958.8 ZT20-23 875.6 875.6 875.6