condition mean min max ZT0-3 264.75 264.75 264.75 ZT4-7 201.9 201.9 201.9 ZT8-11 189.39999999999998 189.39999999999998 189.39999999999998 ZT12-15 123.14999999999999 123.14999999999999 123.14999999999999 ZT16-19 151.85 151.85 151.85 ZT20-23 220.0 220.0 220.0