condition mean min max ZT0-3 220.45 220.45 220.45 ZT4-7 158.1 158.1 158.1 ZT8-11 187.0 187.0 187.0 ZT12-15 201.35 201.35 201.35 ZT16-19 196.85 196.85 196.85 ZT20-23 181.89999999999998 181.89999999999998 181.89999999999998