condition mean min max ZT0-3 89.7 89.7 89.7 ZT4-7 89.4 89.4 89.4 ZT8-11 102.80000000000001 102.80000000000001 102.80000000000001 ZT12-15 164.8 164.8 164.8 ZT16-19 160.15 160.15 160.15 ZT20-23 106.0 106.0 106.0