condition mean min max ZT0-3 1244.1 1244.1 1244.1 ZT4-7 846.1 846.1 846.1 ZT8-11 924.05 924.05 924.05 ZT12-15 988.45 988.45 988.45 ZT16-19 1102.85 1102.85 1102.85 ZT20-23 1161.75 1161.75 1161.75