condition mean min max ZT0-3 52.3371 52.3371 52.3371 ZT4-7 62.94109999999999 62.94109999999999 62.94109999999999 ZT8-11 79.76365 79.76365 79.76365 ZT12-15 65.5582 65.5582 65.5582 ZT16-19 51.58585 51.58585 51.58585 ZT20-23 40.19435 40.19435 40.19435