condition mean min max ZT0-3 0.19924120174999999 0.190251568 0.2082308355 ZT4-7 0.09842609725 0.0882948965 0.108557298 ZT8-11 0.956344056 0.42080150299999997 1.491886609 ZT12-15 3.920652996 3.1059911964999998 4.7353147955 ZT16-19 2.3296073525 1.9049817625 2.7542329425 ZT20-23 1.014399568 0.6160099484999999 1.4127891875