condition mean min max ZT0-3 8606.7 8606.7 8606.7 ZT4-7 7763.2 7763.2 7763.2 ZT8-11 7324.45 7324.45 7324.45 ZT12-15 7653.1 7653.1 7653.1 ZT16-19 9909.2 9909.2 9909.2 ZT20-23 10253.35 10253.35 10253.35