condition mean min max ZT0-3 218.2465 218.2465 218.2465 ZT4-7 170.94600000000003 170.94600000000003 170.94600000000003 ZT8-11 169.4965 169.4965 169.4965 ZT12-15 207.7825 207.7825 207.7825 ZT16-19 214.5805 214.5805 214.5805 ZT20-23 217.7545 217.7545 217.7545