condition mean min max ZT0-3 4562.75 4562.75 4562.75 ZT4-7 1585.8 1585.8 1585.8 ZT8-11 1810.25 1810.25 1810.25 ZT12-15 1800.2 1800.2 1800.2 ZT16-19 2725.25 2725.25 2725.25 ZT20-23 3758.9 3758.9 3758.9