condition mean min max ZT0-3 18.112075447499997 15.829579124999999 20.39457177 ZT4-7 22.353020035 18.422107869999998 26.283932200000002 ZT8-11 42.4087661725 41.38845033 43.429082015000006 ZT12-15 20.7842467475 15.592286864999998 25.97620663 ZT16-19 29.065702107499998 25.920881174999998 32.21052304 ZT20-23 32.7671543775 31.150566875 34.38374188