condition mean min max ZT0-3 3680.25 3680.25 3680.25 ZT4-7 2957.7 2957.7 2957.7 ZT8-11 3004.2 3004.2 3004.2 ZT12-15 2951.7 2951.7 2951.7 ZT16-19 3537.25 3537.25 3537.25 ZT20-23 3871.35 3871.35 3871.35