condition mean min max ZT0-3 91.654013 91.654013 91.654013 ZT4-7 131.7240835 131.7240835 131.7240835 ZT8-11 132.0497115 132.0497115 132.0497115 ZT12-15 116.82458299999999 116.82458299999999 116.82458299999999 ZT16-19 106.8024095 106.8024095 106.8024095 ZT20-23 116.0240965 116.0240965 116.0240965