condition mean min max ZT0-3 106.05 106.05 106.05 ZT4-7 93.4 93.4 93.4 ZT8-11 107.7 107.7 107.7 ZT12-15 102.4 102.4 102.4 ZT16-19 139.2 139.2 139.2 ZT20-23 89.6 89.6 89.6