condition mean min max ZT0-3 95.829622 95.829622 95.829622 ZT4-7 71.5169085 71.5169085 71.5169085 ZT8-11 86.4225885 86.4225885 86.4225885 ZT12-15 126.3590705 126.3590705 126.3590705 ZT16-19 106.996868 106.996868 106.996868 ZT20-23 126.24321549999999 126.24321549999999 126.24321549999999