condition mean min max ZT0-3 736.0 736.0 736.0 ZT4-7 3722.1 3722.1 3722.1 ZT8-11 4055.0 4055.0 4055.0 ZT12-15 3501.85 3501.85 3501.85 ZT16-19 1812.85 1812.85 1812.85 ZT20-23 1004.45 1004.45 1004.45