condition mean min max ZT0-3 2916.55 2916.55 2916.55 ZT4-7 2861.1 2861.1 2861.1 ZT8-11 2634.8500000000004 2634.8500000000004 2634.8500000000004 ZT12-15 2250.45 2250.45 2250.45 ZT16-19 2729.25 2729.25 2729.25 ZT20-23 2783.15 2783.15 2783.15