condition mean min max ZT0-3 182.2 182.2 182.2 ZT4-7 129.4 129.4 129.4 ZT8-11 114.7 114.7 114.7 ZT12-15 120.55 120.55 120.55 ZT16-19 172.95 172.95 172.95 ZT20-23 141.9 141.9 141.9