condition mean min max ZT0-3 130.442 130.442 130.442 ZT4-7 105.6764 105.6764 105.6764 ZT8-11 67.84325 67.84325 67.84325 ZT12-15 89.34065 89.34065 89.34065 ZT16-19 112.12450000000001 112.12450000000001 112.12450000000001 ZT20-23 132.113 132.113 132.113