condition mean min max ZT0-3 2724.8500000000004 2724.8500000000004 2724.8500000000004 ZT4-7 3109.5 3109.5 3109.5 ZT8-11 2850.65 2850.65 2850.65 ZT12-15 2669.95 2669.95 2669.95 ZT16-19 2896.25 2896.25 2896.25 ZT20-23 2697.3999999999996 2697.3999999999996 2697.3999999999996