condition mean min max ZT0-3 688.4 688.4 688.4 ZT4-7 924.5 924.5 924.5 ZT8-11 1063.9 1063.9 1063.9 ZT12-15 806.5500000000001 806.5500000000001 806.5500000000001 ZT16-19 675.6 675.6 675.6 ZT20-23 1005.05 1005.05 1005.05