condition mean min max ZT0-3 99.3 99.3 99.3 ZT4-7 89.9 89.9 89.9 ZT8-11 129.85 129.85 129.85 ZT12-15 141.35 141.35 141.35 ZT16-19 112.05000000000001 112.05000000000001 112.05000000000001 ZT20-23 105.3 105.3 105.3