condition mean min max ZT0-3 3128.05 3128.05 3128.05 ZT4-7 3552.2 3552.2 3552.2 ZT8-11 2403.8 2403.8 2403.8 ZT12-15 2414.8999999999996 2414.8999999999996 2414.8999999999996 ZT16-19 2481.1 2481.1 2481.1 ZT20-23 2648.45 2648.45 2648.45