condition mean min max ZT0-3 8981.25 8981.25 8981.25 ZT4-7 9700.8 9700.8 9700.8 ZT8-11 10077.2 10077.2 10077.2 ZT12-15 9348.5 9348.5 9348.5 ZT16-19 8680.05 8680.05 8680.05 ZT20-23 8622.0 8622.0 8622.0