condition mean min max ZT0-3 170.64999999999998 170.64999999999998 170.64999999999998 ZT4-7 179.6 179.6 179.6 ZT8-11 183.3 183.3 183.3 ZT12-15 200.25 200.25 200.25 ZT16-19 167.85 167.85 167.85 ZT20-23 180.3 180.3 180.3