condition mean min max ZT0-3 1198.95 1198.95 1198.95 ZT4-7 2105.2 2105.2 2105.2 ZT8-11 2046.55 2046.55 2046.55 ZT12-15 1989.6 1989.6 1989.6 ZT16-19 1520.45 1520.45 1520.45 ZT20-23 1454.95 1454.95 1454.95