condition mean min max ZT0-3 120.75 120.75 120.75 ZT4-7 139.2 139.2 139.2 ZT8-11 101.65 101.65 101.65 ZT12-15 135.0 135.0 135.0 ZT16-19 127.6 127.6 127.6 ZT20-23 98.45 98.45 98.45