condition mean min max ZT0-3 38.8176 38.8176 38.8176 ZT4-7 36.425799999999995 36.425799999999995 36.425799999999995 ZT8-11 56.1832 56.1832 56.1832 ZT12-15 48.94975 48.94975 48.94975 ZT16-19 70.6995 70.6995 70.6995 ZT20-23 40.52635 40.52635 40.52635