condition mean min max ZT0-3 9.9724325 9.596035 10.34883 ZT4-7 12.6782 12.6782 12.6782 ZT8-11 13.94135 13.94135 13.94135 ZT12-15 0 0 0 ZT16-19 10.6783 10.6783 10.6783 ZT20-23 11.4679 11.4679 11.4679