condition mean min max ZT0-3 12.154900000000001 11.128350000000001 13.324300000000001 ZT4-7 10.667285 10.667285 10.667285 ZT8-11 10.67305 10.67305 10.67305 ZT12-15 10.989075 10.55155 11.4266 ZT16-19 10.02628 10.02628 10.02628 ZT20-23 12.10275 12.10275 12.10275