condition mean min max ZT0-3 70.69999999999999 70.69999999999999 70.69999999999999 ZT4-7 72.8 72.8 72.8 ZT8-11 104.80000000000001 104.80000000000001 104.80000000000001 ZT12-15 95.4 95.4 95.4 ZT16-19 80.80000000000001 80.80000000000001 80.80000000000001 ZT20-23 108.55 108.55 108.55