condition mean min max ZT0-3 2976.25 2976.25 2976.25 ZT4-7 2778.7 2778.7 2778.7 ZT8-11 2728.7 2728.7 2728.7 ZT12-15 2626.2 2626.2 2626.2 ZT16-19 2673.85 2673.85 2673.85 ZT20-23 2756.35 2756.35 2756.35