condition mean min max ZT0-3 660.83615 660.83615 660.83615 ZT4-7 793.6011295 793.6011295 793.6011295 ZT8-11 573.982456 573.982456 573.982456 ZT12-15 429.1696655 429.1696655 429.1696655 ZT16-19 705.1903125 705.1903125 705.1903125 ZT20-23 989.0902685 989.0902685 989.0902685