condition mean min max ZT0-3 3543.9 3543.9 3543.9 ZT4-7 5602.1 5602.1 5602.1 ZT8-11 5459.4 5459.4 5459.4 ZT12-15 5322.95 5322.95 5322.95 ZT16-19 3969.55 3969.55 3969.55 ZT20-23 4152.3 4152.3 4152.3