condition mean min max ZT0-3 192.0 192.0 192.0 ZT4-7 173.8 173.8 173.8 ZT8-11 106.25 106.25 106.25 ZT12-15 125.75 125.75 125.75 ZT16-19 170.75 170.75 170.75 ZT20-23 195.55 195.55 195.55