condition mean min max ZT0-3 64.00665000000001 64.00665000000001 64.00665000000001 ZT4-7 113.21685 113.21685 113.21685 ZT8-11 116.97200000000001 116.97200000000001 116.97200000000001 ZT12-15 148.28146666666666 148.28146666666666 148.28146666666666 ZT16-19 109.27855 109.27855 109.27855 ZT20-23 66.02755 66.02755 66.02755