condition mean min max ZT0-3 43.534 43.37025 43.69775 ZT4-7 57.60485 57.60485 57.60485 ZT8-11 46.68625 46.68625 46.68625 ZT12-15 0 0 0 ZT16-19 44.36595 44.36595 44.36595 ZT20-23 53.11005 53.11005 53.11005