condition mean min max ZT0-3 126.35 126.35 126.35 ZT4-7 102.1 102.1 102.1 ZT8-11 123.85 123.85 123.85 ZT12-15 157.2 157.2 157.2 ZT16-19 176.89999999999998 176.89999999999998 176.89999999999998 ZT20-23 176.8 176.8 176.8