condition mean min max ZT0-3 22.382575000000003 20.055500000000002 24.70965 ZT4-7 16.2025 16.2025 16.2025 ZT8-11 10.553049999999999 10.553049999999999 10.553049999999999 ZT12-15 0 0 0 ZT16-19 12.93535 12.93535 12.93535 ZT20-23 11.8813 11.8813 11.8813