condition mean min max ZT0-3 2619.45 2619.45 2619.45 ZT4-7 2771.4 2771.4 2771.4 ZT8-11 2581.2 2581.2 2581.2 ZT12-15 2877.5 2877.5 2877.5 ZT16-19 3299.5 3299.5 3299.5 ZT20-23 3058.75 3058.75 3058.75