condition mean min max ZT0-3 4009.80898 4009.80898 4009.80898 ZT4-7 3532.9467225 3532.9467225 3532.9467225 ZT8-11 2997.7288310000004 2997.7288310000004 2997.7288310000004 ZT12-15 3713.8057605 3713.8057605 3713.8057605 ZT16-19 3778.0467074999997 3778.0467074999997 3778.0467074999997 ZT20-23 3075.4402915 3075.4402915 3075.4402915