condition mean min max ZT0-3 946.35 946.35 946.35 ZT4-7 546.1 546.1 546.1 ZT8-11 499.95000000000005 499.95000000000005 499.95000000000005 ZT12-15 697.55 697.55 697.55 ZT16-19 726.1 726.1 726.1 ZT20-23 958.0 958.0 958.0