condition mean min max ZT0-3 0.5926155 0.5926155 0.5926155 ZT4-7 0.3155125 0.3155125 0.3155125 ZT8-11 0.172517 0.172517 0.172517 ZT12-15 0.5233175 0.5233175 0.5233175 ZT16-19 1.10799 1.10799 1.10799 ZT20-23 1.3745155 1.3745155 1.3745155