condition mean min max ZT0-3 60.25 60.25 60.25 ZT4-7 45.9 45.9 45.9 ZT8-11 40.1 40.1 40.1 ZT12-15 45.35 45.35 45.35 ZT16-19 51.55 51.55 51.55 ZT20-23 61.150000000000006 61.150000000000006 61.150000000000006