condition mean min max ZT0-3 3288.6 3288.6 3288.6 ZT4-7 2991.7 2991.7 2991.7 ZT8-11 3064.65 3064.65 3064.65 ZT12-15 3243.15 3243.15 3243.15 ZT16-19 3146.45 3146.45 3146.45 ZT20-23 3341.3 3341.3 3341.3