condition mean min max ZT0-3 54.15 54.15 54.15 ZT4-7 17.3 17.3 17.3 ZT8-11 64.55 64.55 64.55 ZT12-15 26.15 26.15 26.15 ZT16-19 60.6 60.6 60.6 ZT20-23 105.1 105.1 105.1