condition mean min max ZT0-3 132.5 132.5 132.5 ZT4-7 130.2 130.2 130.2 ZT8-11 130.95 130.95 130.95 ZT12-15 157.9 157.9 157.9 ZT16-19 113.80000000000001 113.80000000000001 113.80000000000001 ZT20-23 149.2 149.2 149.2