condition mean min max ZT0-3 3119.5 3119.5 3119.5 ZT4-7 3149.8 3149.8 3149.8 ZT8-11 2780.35 2780.35 2780.35 ZT12-15 2900.25 2900.25 2900.25 ZT16-19 3344.9 3344.9 3344.9 ZT20-23 3283.3500000000004 3283.3500000000004 3283.3500000000004