condition mean min max ZT0-3 86.19999999999999 86.19999999999999 86.19999999999999 ZT4-7 93.5 93.5 93.5 ZT8-11 123.6 123.6 123.6 ZT12-15 127.25 127.25 127.25 ZT16-19 88.4 88.4 88.4 ZT20-23 104.3 104.3 104.3