condition mean min max ZT0-3 158.135 158.135 158.135 ZT4-7 88.6712 88.6712 88.6712 ZT8-11 62.3756 62.3756 62.3756 ZT12-15 58.388200000000005 58.388200000000005 58.388200000000005 ZT16-19 102.7695 102.7695 102.7695 ZT20-23 111.006 111.006 111.006