condition mean min max ZT0-3 102.44999999999999 102.44999999999999 102.44999999999999 ZT4-7 37.1 37.1 37.1 ZT8-11 54.7 54.7 54.7 ZT12-15 29.450000000000003 29.450000000000003 29.450000000000003 ZT16-19 69.3 69.3 69.3 ZT20-23 65.25 65.25 65.25