condition mean min max ZT0-3 77.55 77.55 77.55 ZT4-7 107.4 107.4 107.4 ZT8-11 113.25 113.25 113.25 ZT12-15 100.80000000000001 100.80000000000001 100.80000000000001 ZT16-19 60.55 60.55 60.55 ZT20-23 59.15 59.15 59.15