condition mean min max ZT0-3 3454.1 3454.1 3454.1 ZT4-7 3615.4 3615.4 3615.4 ZT8-11 4352.450000000001 4352.450000000001 4352.450000000001 ZT12-15 4979.85 4979.85 4979.85 ZT16-19 4842.4 4842.4 4842.4 ZT20-23 4280.95 4280.95 4280.95