condition mean min max ZT0-3 67.6771 67.6771 67.6771 ZT4-7 70.91560000000001 70.91560000000001 70.91560000000001 ZT8-11 52.2762 52.2762 52.2762 ZT12-15 54.6999 54.6999 54.6999 ZT16-19 50.61635 50.61635 50.61635 ZT20-23 65.47945 65.47945 65.47945