condition mean min max ZT0-3 8198.4 8198.4 8198.4 ZT4-7 7298.4 7298.4 7298.4 ZT8-11 7971.1 7971.1 7971.1 ZT12-15 6286.700000000001 6286.700000000001 6286.700000000001 ZT16-19 6687.8 6687.8 6687.8 ZT20-23 7473.75 7473.75 7473.75